Micron Serial NOR Flash Memory
3V, Multiple I/O, 4KB, 32KB, 64KB, Sector Erase
MT25QL128ABA
Features
SPI-compatible serial bus interface
Single and double transfer rate (STR/DTR)
Clock frequency
133 MHz (MAX) for all protocols in STR
90 MHz (MAX) for all protocols in DTR
Dual/quad I/O commands for increased through-
put up to 90 MB/s
Supported protocols in both STR and DTR
Extended I/O protocol
Dual I/O protocol
Quad I/O protocol
Execute-in-place (XIP)
PROGRAM/ERASE SUSPEND operations
Volatile and nonvolatile configuration settings
Software reset
Additional reset pin for selected part numbers
Dedicated 64-byte OTP area outside main memory
Readable and user-lockable
Permanent lock with PROGRAM OTP command
Erase capability
Bulk erase
Sector erase 64KB uniform granularity
Subsector erase 4KB, 32KB granularity
Security and write protection
Volatile and nonvolatile locking and software
write protection for each 64KB sector
Nonvolatile configuration locking
Password protection
Hardware write protection: nonvolatile bits
(BP[3:0] and TB) define protected area size
Program/erase protection during power-up
CRC detects accidental changes to raw data
Electronic signature
JEDEC-standard 3-byte signature (BA18h)
Extended device ID: two additional bytes identify
device factory options
JESD47H-compliant
Minimum 100,000 ERASE cycles per sector
Data retention: 20 years (TYP)
Options Marking
Voltage
2.7–3.6V L
Density
128Mb 128
Device stacking
Monolithic A
Device generation B
Die revision A
Pin configuration
RESET# and HOLD# 8
Sector Size
64KB E
Packages – JEDEC-standard, RoHS-
compliant
16-pin SOP2, 300 mils body width
(SO16W)
SF
8-pin SOP2, 208 mils body width
(SO8W)
SE
24-ball T-PBGA, 05/6mm x 8mm
(TBGA24)
12
24-ball T-PBGA 05/6mm x 8mm (4 x
6 array)
14
W-PDFN-8 8mm x 6mm (MLP8 8mm
x 6mm)
W9
W-PDFN-8 6mm x 5mm (MLP8 6mm
x 5mm)
W7
Standard security 0
Special options
Standard S
Automotive A
Operating temperature range
From –40°C to +85°C IT
From –40°C to +105°C AT
128Mb, 3V Multiple I/O Serial Flash Memory
Features
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 1Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Products and specifications discussed herein are subject to change by Micron without notice.
Part Number Ordering
Micron Serial NOR Flash devices are available in different configurations and densities. Verify valid part numbers
by using Micron’s part catalog search at www.micron.com. To compare features and specifications by device type,
visit www.micron.com/products. Contact the factory for devices not found.
Figure 1: Part Number Ordering Information
Production Status
Blank = Production
ES = Engineering samples
QS = Qualification samples
Operating Temperature
IT = –40°C to +85°C
AT = –40°C to +105°C
UT = –40°C to +125°C
Special Options
S = Standard
A = Automotive grade AEC-Q100
Security Features
0 = Standard default security
Package Codes
12 = 24-ball T-PBGA, 05/6 x 8mm (5 x 5 array)
14 = 24-ball T-PBGA, 05/6 x 8mm (4 x 6 array)
SC = 8-pin SOP2, 150 mils
SE = 8-pin SOP2, 208 mils
SF = 16-pin SOP2, 300 mils
W7 = 8-pin W-PDFN, 6 x 5mm
W9 = 8-pin W-PDFN, 8 x 6mm
5x = WLCSP package1
Sector size
E = 64KB sectors, 4KB and 32KB subsectors
Micron Technology
Part Family
25Q = SPI NOR
Voltage
L = 2.7–3.6V
U = 1.7–2.0V
Density
064 = 64Mb (8MB)
128 = 128Mb (16MB)
256 = 256Mb (32MB)
512 = 512Mb (64MB)
01G = 1Gb (128MB)
02G = 2Gb (256MB)
Stack
A = 1 die/1 S#
B = 2 die/1 S#
C = 4 die/1 S#
Device Generation
B = 2nd generation
Die Revision
A = Rev. A
B = Rev. B
Pin Configuration Option
1 = HOLD# pin
3 = RESET# pin
8 = RESET# and HOLD# pin
MT 25Q L xxx A BA 1 E SF IT0- S ES
Note: 1. WLCSP package codes, package size, and
availability are density-specific. Contact the
factory for availability.
128Mb, 3V Multiple I/O Serial Flash Memory
Features
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 2Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Contents
Important Notes and Warnings ......................................................................................................................... 8
Device Description ........................................................................................................................................... 9
Device Logic Diagram ................................................................................................................................. 10
Advanced Security Protection ..................................................................................................................... 10
Signal Assignments – Package Code: 12 ........................................................................................................... 11
Signal Assignments – Package Code: 14 ........................................................................................................... 12
Signal Assignments – Package Code: SE, W7, W9 .............................................................................................. 12
Signal Assignments – Package Code: SF ........................................................................................................... 13
Signal Descriptions ......................................................................................................................................... 14
Package Dimensions – Package Code: 12 ......................................................................................................... 15
Package Dimensions – Package Code: 14 ......................................................................................................... 17
Package Dimensions – Package Code: SE ......................................................................................................... 18
Package Dimensions – Package Code: SF ......................................................................................................... 19
Package Dimensions – Package Code: W7 ........................................................................................................ 20
Package Dimensions – Package Code: W9 ........................................................................................................ 21
Memory Map – 128Mb Density ....................................................................................................................... 22
Status Register ................................................................................................................................................ 23
Block Protection Settings ............................................................................................................................ 24
Flag Status Register ......................................................................................................................................... 25
Internal Configuration Register ....................................................................................................................... 26
Nonvolatile Configuration Register .................................................................................................................. 27
Volatile Configuration Register ........................................................................................................................ 29
Supported Clock Frequencies ..................................................................................................................... 30
Enhanced Volatile Configuration Register ........................................................................................................ 32
Security Registers ........................................................................................................................................... 33
Sector Protection Security Register .................................................................................................................. 34
Nonvolatile and Volatile Sector Lock Bits Security ............................................................................................ 35
Volatile Lock Bit Security Register .................................................................................................................... 35
Device ID Data ............................................................................................................................................... 36
Serial Flash Discovery Parameter Data ............................................................................................................. 37
Command Definitions .................................................................................................................................... 38
Software RESET Operations ............................................................................................................................ 43
RESET ENABLE and RESET MEMORY Commands ....................................................................................... 43
READ ID Operations ....................................................................................................................................... 44
READ ID and MULTIPLE I/O READ ID Commands ...................................................................................... 44
READ SERIAL FLASH DISCOVERY PARAMETER Operation .............................................................................. 45
READ SERIAL FLASH DISCOVERY PARAMETER Command ......................................................................... 45
READ MEMORY Operations ............................................................................................................................ 46
READ MEMORY Operations Timings ............................................................................................................... 46
WRITE ENABLE/DISABLE Operations ............................................................................................................. 53
READ REGISTER Operations ........................................................................................................................... 54
WRITE REGISTER Operations ......................................................................................................................... 55
CLEAR FLAG STATUS REGISTER Operation ..................................................................................................... 57
PROGRAM Operations .................................................................................................................................... 58
PROGRAM Operations Timings ....................................................................................................................... 59
ERASE Operations .......................................................................................................................................... 62
SUSPEND/RESUME Operations ..................................................................................................................... 64
PROGRAM/ERASE SUSPEND Operations .................................................................................................... 64
PROGRAM/ERASE RESUME Operations ...................................................................................................... 64
ONE-TIME PROGRAMMABLE Operations ....................................................................................................... 66
128Mb, 3V Multiple I/O Serial Flash Memory
Features
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 3Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
READ OTP ARRAY Command ...................................................................................................................... 66
PROGRAM OTP ARRAY Command .............................................................................................................. 66
DEEP POWER-DOWN Operations ................................................................................................................... 67
ENTER DEEP POWER-DOWN Command .................................................................................................... 67
RELEASE FROM DEEP POWER-DOWN Command ....................................................................................... 68
DEEP POWER-DOWN Timings .................................................................................................................... 69
QUAD PROTOCOL Operations ........................................................................................................................ 70
ENTER or RESET QUAD INPUT/OUTPUT MODE Command ....................................................................... 70
CYCLIC REDUNDANCY CHECK Operations .................................................................................................... 72
State Table ..................................................................................................................................................... 74
XIP Mode ....................................................................................................................................................... 75
Activate and Terminate XIP Using Volatile Configuration Register ................................................................. 75
Activate and Terminate XIP Using Nonvolatile Configuration Register .......................................................... 75
Confirmation Bit Settings Required to Activate or Terminate XIP .................................................................. 76
Terminating XIP After a Controller and Memory Reset ................................................................................. 76
Power-Up and Power-Down ............................................................................................................................ 77
Power-Up and Power-Down Requirements .................................................................................................. 77
Active, Standby, and Deep Power-Down Modes ................................................................................................ 79
Power Loss and Interface Rescue ..................................................................................................................... 79
Recovery .................................................................................................................................................... 79
Power Loss Recovery ................................................................................................................................... 80
Interface Rescue ......................................................................................................................................... 80
Initial Delivery Status ..................................................................................................................................... 80
Absolute Ratings and Operating Conditions ..................................................................................................... 81
DC Characteristics and Operating Conditions .................................................................................................. 83
AC Characteristics and Operating Conditions .................................................................................................. 85
AC Reset Specifications ................................................................................................................................... 87
Program/Erase Specifications ......................................................................................................................... 91
Revision History ............................................................................................................................................. 92
Rev. K – 04/19 ............................................................................................................................................. 92
Rev. J – 05/18 .............................................................................................................................................. 92
Rev. I - 09/16 .............................................................................................................................................. 92
Rev. H - 07/16 ............................................................................................................................................. 92
Rev. G – 06/16 ............................................................................................................................................. 92
Rev. F – 12/15 ............................................................................................................................................. 92
Rev. E – 10/15 ............................................................................................................................................. 92
Rev. D – 9/15 .............................................................................................................................................. 92
Rev. C – 7/15 ............................................................................................................................................... 93
Rev. B – 7/14 ............................................................................................................................................... 93
Rev. A – 01/14 ............................................................................................................................................. 93
128Mb, 3V Multiple I/O Serial Flash Memory
Features
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 4Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
List of Figures
Figure 1: Part Number Ordering Information .................................................................................................... 2
Figure 2: Block Diagram .................................................................................................................................. 9
Figure 3: Logic Diagram ................................................................................................................................. 10
Figure 4: 24-Ball T-BGA, 5 x 5 (Balls Down) ..................................................................................................... 11
Figure 5: 24-Ball TBGA, 4 x 6 (Balls Down) ...................................................................................................... 12
Figure 6: 8-Pin, SOP2 or W-PDFN (Top View) ................................................................................................. 12
Figure 7: 16-Pin, Plastic Small Outline – SO16 (Top View) ................................................................................ 13
Figure 8: 24-Ball T-PBGA (5 x 5 ball grid array) – 6mm x 8mm .......................................................................... 15
Figure 9: 24-Ball T-PBGA (24b05) – 6mm x 8mm ............................................................................................. 17
Figure 10: 8-Pin SOP2 (SO8W) – 208 Mils Body Width ..................................................................................... 18
Figure 11: 16-Pin SOP2 – 300 Mils Body Width ................................................................................................ 19
Figure 12: W-PDFN-8 (MLP8) – 6mm x 5mm .................................................................................................. 20
Figure 13: W-PDFN-8 (MLP8) – 8mm x 6mm .................................................................................................. 21
Figure 14: Internal Configuration Register ...................................................................................................... 26
Figure 15: Sector and Password Protection ..................................................................................................... 33
Figure 16: RESET ENABLE and RESET MEMORY Command ........................................................................... 43
Figure 17: READ ID and MULTIPLE I/O READ ID Commands ......................................................................... 44
Figure 18: READ SERIAL FLASH DISCOVERY PARAMETER Command – 5Ah ................................................... 45
Figure 19: READ – 03h ................................................................................................................................... 46
Figure 20: FAST READ – 0Bh .......................................................................................................................... 47
Figure 21: DUAL OUTPUT FAST READ – 3Bh .................................................................................................. 47
Figure 22: DUAL INPUT/OUTPUT FAST READ – BBh ..................................................................................... 48
Figure 23: QUAD OUTPUT FAST READ – 6Bh ................................................................................................. 48
Figure 24: QUAD INPUT/OUTPUT FAST READ – EBh ..................................................................................... 49
Figure 25: QUAD INPUT/OUTPUT WORD READ – E7h ................................................................................... 49
Figure 26: DTR FAST READ – 0Dh .................................................................................................................. 50
Figure 27: DTR DUAL OUTPUT FAST READ – 3Dh .......................................................................................... 50
Figure 28: DTR DUAL INPUT/OUTPUT FAST READ – BDh ............................................................................. 51
Figure 29: DTR QUAD OUTPUT FAST READ – 6Dh ......................................................................................... 51
Figure 30: DTR QUAD INPUT/OUTPUT FAST READ – EDh ............................................................................. 52
Figure 31: WRITE ENABLE and WRITE DISABLE Timing ................................................................................. 53
Figure 32: READ REGISTER Timing ................................................................................................................ 54
Figure 33: WRITE REGISTER Timing .............................................................................................................. 56
Figure 34: CLEAR FLAG STATUS REGISTER Timing ........................................................................................ 57
Figure 35: PAGE PROGRAM Command .......................................................................................................... 59
Figure 36: DUAL INPUT FAST PROGRAM Command ...................................................................................... 60
Figure 37: EXTENDED DUAL INPUT FAST PROGRAM Command ................................................................... 60
Figure 38: QUAD INPUT FAST PROGRAM Command ..................................................................................... 61
Figure 39: EXTENDED QUAD INPUT FAST PROGRAM Command ................................................................... 61
Figure 40: SUBSECTOR and SECTOR ERASE Timing ....................................................................................... 63
Figure 41: BULK ERASE Timing ...................................................................................................................... 63
Figure 42: PROGRAM/ERASE SUSPEND and RESUME Timing ........................................................................ 65
Figure 43: READ OTP ARRAY Command Timing ............................................................................................. 66
Figure 44: PROGRAM OTP Command Timing ................................................................................................. 67
Figure 45: ENTER DEEP POWER-DOWN Timing ............................................................................................. 69
Figure 46: RELEASE FROM DEEP POWER-DOWN Timing ............................................................................... 70
Figure 47: XIP Mode Directly After Power-On .................................................................................................. 75
Figure 48: Power-Up Timing .......................................................................................................................... 78
Figure 49: AC Timing Input/Output Reference Levels ...................................................................................... 82
Figure 50: Reset AC Timing During PROGRAM and ERASE Cycle ..................................................................... 88
128Mb, 3V Multiple I/O Serial Flash Memory
Features
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 5Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Figure 51: Reset Enable and Reset Memory Timing ......................................................................................... 88
Figure 52: Serial Input Timing STR ................................................................................................................. 88
Figure 53: Serial Input Timing DTR ................................................................................................................ 89
Figure 54: Write Protect Setup and Hold During WRITE STATUS REGISTER Operation (SRWD = 1) ................... 89
Figure 55: Hold Timing .................................................................................................................................. 89
Figure 56: Output Timing for STR ................................................................................................................... 90
Figure 57: Output Timing for DTR .................................................................................................................. 90
128Mb, 3V Multiple I/O Serial Flash Memory
Features
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 6Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
List of Tables
Table 1: Signal Descriptions ........................................................................................................................... 14
Table 2: Memory Map .................................................................................................................................... 22
Table 3: Status Register .................................................................................................................................. 23
Table 4: Protected Area .................................................................................................................................. 24
Table 5: Flag Status Register ........................................................................................................................... 25
Table 6: Nonvolatile Configuration Register .................................................................................................... 27
Table 7: Volatile Configuration Register .......................................................................................................... 29
Table 8: Sequence of Bytes During Wrap ......................................................................................................... 29
Table 9: Clock Frequencies – STR (in MHz) ..................................................................................................... 30
Table 10: Clock Frequencies – DTR (in MHz) .................................................................................................. 31
Table 11: Enhanced Volatile Configuration Register ........................................................................................ 32
Table 12: Sector Protection Register ............................................................................................................... 34
Table 13: Global Freeze Bit ............................................................................................................................. 34
Table 14: Nonvolatile and Volatile Lock Bits .................................................................................................... 35
Table 15: Volatile Lock Bit Register ................................................................................................................. 35
Table 16: Device ID Data ............................................................................................................................... 36
Table 17: Extended Device ID Data, First Byte ................................................................................................. 36
Table 18: Command Set ................................................................................................................................. 38
Table 19: RESET ENABLE and RESET MEMORY Operations ............................................................................ 43
Table 20: READ ID and MULTIPLE I/O READ ID Operations ........................................................................... 44
Table 21: READ MEMORY Operations ............................................................................................................ 46
Table 22: WRITE ENABLE/DISABLE Operations ............................................................................................. 53
Table 23: READ REGISTER Operations ........................................................................................................... 54
Table 24: WRITE REGISTER Operations .......................................................................................................... 55
Table 25: CLEAR FLAG STATUS REGISTER Operation ..................................................................................... 57
Table 26: PROGRAM Operations .................................................................................................................... 58
Table 27: ERASE Operations ........................................................................................................................... 62
Table 28: SUSPEND/RESUME Operations ...................................................................................................... 64
Table 29: OTP Control Byte (Byte 64) .............................................................................................................. 67
Table 30: DEEP POWER-DOWN Operations .................................................................................................... 68
Table 31: ENTER and RESET QUAD PROTOCOL Operations ............................................................................ 71
Table 32: CRC Command Sequence on Entire Device ...................................................................................... 72
Table 33: CRC Command Sequence on a Range .............................................................................................. 73
Table 34: Operations Allowed/Disallowed During Device States ...................................................................... 74
Table 35: XIP Confirmation Bit ....................................................................................................................... 76
Table 36: Effects of Running XIP in Different Protocols .................................................................................... 76
Table 37: Power-Up Timing and VWI Threshold ............................................................................................... 78
Table 38: Absolute Ratings ............................................................................................................................. 81
Table 39: Operating Conditions ...................................................................................................................... 81
Table 40: Input/Output Capacitance .............................................................................................................. 81
Table 41: AC Timing Input/Output Conditions ............................................................................................... 82
Table 42: DC Current Characteristics and Operating Conditions ...................................................................... 83
Table 43: DC Voltage Characteristics and Operating Conditions ...................................................................... 83
Table 44: AC Characteristics and Operating Conditions ................................................................................... 85
Table 45: AC RESET Conditions ...................................................................................................................... 87
Table 46: Program/Erase Specifications .......................................................................................................... 91
128Mb, 3V Multiple I/O Serial Flash Memory
Features
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 7Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Important Notes and Warnings
Micron Technology, Inc. ("Micron") reserves the right to make changes to information published in this document,
including without limitation specifications and product descriptions. This document supersedes and replaces all
information supplied prior to the publication hereof. You may not rely on any information set forth in this docu-
ment if you obtain the product described herein from any unauthorized distributor or other source not authorized
by Micron.
Automotive Applications. Products are not designed or intended for use in automotive applications unless specifi-
cally designated by Micron as automotive-grade by their respective data sheets. Distributor and customer/distrib-
utor shall assume the sole risk and liability for and shall indemnify and hold Micron harmless against all claims,
costs, damages, and expenses and reasonable attorneys' fees arising out of, directly or indirectly, any claim of
product liability, personal injury, death, or property damage resulting directly or indirectly from any use of non-
automotive-grade products in automotive applications. Customer/distributor shall ensure that the terms and con-
ditions of sale between customer/distributor and any customer of distributor/customer (1) state that Micron
products are not designed or intended for use in automotive applications unless specifically designated by Micron
as automotive-grade by their respective data sheets and (2) require such customer of distributor/customer to in-
demnify and hold Micron harmless against all claims, costs, damages, and expenses and reasonable attorneys'
fees arising out of, directly or indirectly, any claim of product liability, personal injury, death, or property damage
resulting from any use of non-automotive-grade products in automotive applications.
Critical Applications. Products are not authorized for use in applications in which failure of the Micron compo-
nent could result, directly or indirectly in death, personal injury, or severe property or environmental damage
("Critical Applications"). Customer must protect against death, personal injury, and severe property and environ-
mental damage by incorporating safety design measures into customer's applications to ensure that failure of the
Micron component will not result in such harms. Should customer or distributor purchase, use, or sell any Micron
component for any critical application, customer and distributor shall indemnify and hold harmless Micron and
its subsidiaries, subcontractors, and affiliates and the directors, officers, and employees of each against all claims,
costs, damages, and expenses and reasonable attorneys' fees arising out of, directly or indirectly, any claim of
product liability, personal injury, or death arising in any way out of such critical application, whether or not Mi-
cron or its subsidiaries, subcontractors, or affiliates were negligent in the design, manufacture, or warning of the
Micron product.
Customer Responsibility. Customers are responsible for the design, manufacture, and operation of their systems,
applications, and products using Micron products. ALL SEMICONDUCTOR PRODUCTS HAVE INHERENT FAIL-
URE RATES AND LIMITED USEFUL LIVES. IT IS THE CUSTOMER'S SOLE RESPONSIBILITY TO DETERMINE
WHETHER THE MICRON PRODUCT IS SUITABLE AND FIT FOR THE CUSTOMER'S SYSTEM, APPLICATION, OR
PRODUCT. Customers must ensure that adequate design, manufacturing, and operating safeguards are included
in customer's applications and products to eliminate the risk that personal injury, death, or severe property or en-
vironmental damages will result from failure of any semiconductor component.
Limited Warranty. In no event shall Micron be liable for any indirect, incidental, punitive, special or consequential
damages (including without limitation lost profits, lost savings, business interruption, costs related to the removal
or replacement of any products or rework charges) whether or not such damages are based on tort, warranty,
breach of contract or other legal theory, unless explicitly stated in a written agreement executed by Micron's duly
authorized representative.
128Mb, 3V Multiple I/O Serial Flash Memory
Important Notes and Warnings
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 8Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Device Description
The MT25Q is a high-performance multiple input/output serial Flash memory device. It
features a high-speed SPI-compatible bus interface, execute-in-place (XIP) functionali-
ty, advanced write protection mechanisms, and extended address access. Innovative,
high-performance, dual and quad input/output commands enable double or quadru-
ple the transfer bandwidth for READ and PROGRAM operations.
Figure 2: Block Diagram
HOLD#
S#
W# Control logic High voltage
generator
Memory
Address register
and counter
256 byte
data buffer
256 bytes (page size)
X decoder
Y decoder
C
Status
register
64 OTP bytes
I/O shift register
DQ0
DQ1
DQ2
DQ3
RESET#
Note: 1. Each page of memory can be individually programmed, but the device is not page-eras-
able.
128Mb, 3V Multiple I/O Serial Flash Memory
Device Description
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 9Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Device Logic Diagram
Figure 3: Logic Diagram
DQ[3:0]
VCC
C
VSS
S#
W#
RESET#
HOLD#
Notes: 1. Depending on the selected device (see Part Numbering Ordering Information), DQ3 =
DQ3/RESET# or DQ3/HOLD#.
2. A separate RESET pin is available on dedicated part numbers (see Part Numbering Order-
ing Information).
Advanced Security Protection
The device offers an advanced security protection scheme where each sector can be in-
dependently locked, by either volatile or nonvolatile locking features. The nonvolatile
locking configuration can also be locked, as well password-protected. See Block Protec-
tion Settings and Sector and Password Protection for more details.
128Mb, 3V Multiple I/O Serial Flash Memory
Device Description
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 10 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Signal Assignments – Package Code: 12
Figure 4: 24-Ball T-BGA, 5 x 5 (Balls Down)
A
B
C
D
E
1 2 3 4 5
MT25QXXXXXXX8E12-XXXX
RESET#
VCC
W#/DQ2
DQ3/HOLD#
RFU
NC
C
S#
DQ1
RFU
RFU
VSS
RFU
DQ0
RFU
RFU
RFU
RFU
RFU
RFU
RFU
RFU
RFU
RFU
A
B
C
D
E
1 2 3 4 5
MT25QXXXXXXX1E12-XXXX
DNU
VCC
W#/DQ2
DQ3/HOLD#
RFU
NC
C
S#
DQ1
RFU
RFU
VSS
RFU
DQ0
RFU
RFU
RFU
RFU
RFU
RFU
RFU
RFU
RFU
RFU
A
B
C
D
E
1 2 3 4 5
MT25QXXXXXXX3E12-XXXX
DNU
VCC
W#/DQ2
DQ3/RESET#
RFU
NC
C
S#
DQ1
RFU
RFU
VSS
RFU
DQ0
RFU
RFU
RFU
RFU
RFU
RFU
RFU
RFU
RFU
RFU
Notes: 1. RESET# or HOLD# signals can share ball D4 with DQ3, depending on the selected device
(see Part Numbering Ordering Information). When using single and dual I/O commands
on these parts, DQ3 must be driven HIGH by the host, or an external pull-up resistor
must be placed on the PCB, in order to avoid allowing the HOLD# or RESET# input to
float.
2. Ball A4 = RESET# or DNU, depending on the part number. This signal has an internal
pull-up resistor and may be left unconnected if not used.
128Mb, 3V Multiple I/O Serial Flash Memory
Signal Assignments – Package Code: 12
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 11 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Signal Assignments – Package Code: 14
Figure 5: 24-Ball TBGA, 4 x 6 (Balls Down)
A
B
C
D
E
F
1 2 3 4
MT25QXXXXXXX8E14-XXXX
RESET#
VCC
W#/DQ2
DQ3/HOLD#
NC
NC
NC
C
S#
DQ1
NC
NC
NC
VSS
NC
DQ0
NC
NC
NC
NC
NC
NC
NC
NC
A
B
C
D
E
F
1 2 3 4
MT25QXXXXXXX1E14-XXXX
DNU
VCC
W#/DQ2
DQ3/HOLD#
NC
NC
NC
C
S#
DQ1
NC
NC
NC
VSS
NC
DQ0
NC
NC
NC
NC
NC
NC
NC
NC
A
B
C
D
E
F
1 2 3 4
MT25QXXXXXXX3E14-XXXX
DNU
VCC
W#/DQ2
DQ3/RESET#
NC
NC
NC
C
S#
DQ1
NC
NC
NC
VSS
NC
DQ0
NC
NC
NC
NC
NC
NC
NC
NC
Notes: 1. RESET# or HOLD# signals can share ball D4 with DQ3, depending on the selected device
(see Part Numbering Ordering Information). When using single and dual I/O commands
on these parts, DQ3 must be driven HIGH by the host, or an external pull-up resistor
must be placed on the PCB, in order to avoid allowing the HOLD# or RESET# input to
float.
2. Ball A4 = RESET# or DNU, depending on the part number. This signal has an internal
pull-up resistor and may be left unconnected if not used.
Signal Assignments – Package Code: SE, W7, W9
Figure 6: 8-Pin, SOP2 or W-PDFN (Top View)
1
2
3
4
8
7
6
5
S#
DQ1
W#/DQ2
VSS
MT25QXXXXXXX1EXX-XXXX
MT25QXXXXXXX3EXX-XXXX
S#
DQ1
W#/DQ2
VSS
VCC
DQ3/HOLD#
C
DQ0
VCC
DQ3/RESET#
C
DQ0
Notes: 1. RESET# or HOLD# signals can share pin 7 with DQ3, depending on the selected device
(see Part Numbering Ordering Information). When using single and dual I/O commands
on these parts, DQ3 must be driven HIGH by the host, or an external pull-up resistor
must be placed on the PCB, in order to avoid allowing the HOLD# or RESET# input to
float.
128Mb, 3V Multiple I/O Serial Flash Memory
Signal Assignments – Package Code: 14
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 12 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
2. On the underside of the W-PDFN package, there is an exposed central pad that is pulled
internally to VSS. It can be left floating or can be connected to VSS. It must not be con-
nected to any other voltage or signal line on the PCB.
3. MT25QXXXXXXX8EXX-XXXX not available in 8-pin package.
Signal Assignments – Package Code: SF
Figure 7: 16-Pin, Plastic Small Outline – SO16 (Top View)
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
C
DQ0
VSS
W#/DQ2
DQ3/HOLD#
VCC
RESET#
DNU
DNU
DNU
DNU
DNU
DNU
DNU
C
DQ0
VSS
W#/DQ2
DNU
DNU
DNU
DNU
C
DQ0
VSS
W#/DQ2
DNU
DNU
DNU
DNU
S#
DQ1
DQ3/HOLD#
VCC
DNU
DNU
DNU
DNU
S#
DQ1
DQ3/RESET#
VCC
DNU
DNU
DNU
DNU
S#
DQ1
MT25QXXXXXXX8EXX-XXXX
MT25QXXXXXXX3EXX-XXXX
MT25QXXXXXXX1EXX-XXXX
Notes: 1. RESET# or HOLD# signals can share pin 1 with DQ3, depending on the selected device
(see Part Numbering Ordering Information). When using single and dual I/O commands
on these parts, DQ3 must be driven HIGH by the host, or an external pull-up resistor
must be placed on the PCB, in order to avoid allowing the HOLD# or RESET# input to
float.
2. Pin 3 = RESET# or DNU, depending on the part number. This signal has an internal pull-
up resistor and may be left unconnected if not used.
128Mb, 3V Multiple I/O Serial Flash Memory
Signal Assignments – Package Code: SF
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 13 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Signal Descriptions
The signal description table below is a comprehensive list of signals for the MT25Q fam-
ily devices. All signals listed may not be supported on this device. See Signal Assign-
ments for information specific to this device.
Table 1: Signal Descriptions
Symbol Type Description
S# Input Chip select: When S# is driven HIGH, the device will enter standby mode, unless an internal
PROGRAM, ERASE, or WRITE STATUS REGISTER cycle is in progress. All other input pins are ig-
nored and the output pins are tri-stated. On parts with the pin configuration offering a dedica-
ted RESET# pin, however, the RESET# input pin remains active even when S# is HIGH.
Driving S# LOW enables the device, placing it in the active mode.
After power-up, a falling edge on S# is required prior to the start of any command.
C Input Clock: Provides the timing of the serial interface. Command inputs are latched on the rising
edge of the clock. In STR commands or protocol, address and data inputs are latched on the
rising edge of the clock, while data is output on the falling edge of the clock. In DTR com-
mands or protocol, address and data inputs are latched on both edges of the clock, and data is
output on both edges of the clock.
RESET# Input RESET#: When RESET# is driven LOW, the device is reset and the outputs are tri-stated. If RE-
SET# is driven LOW while an internal WRITE, PROGRAM, or ERASE operation is in progress, da-
ta may be lost. The RESET# functionality can be disabled using bit 4 of the nonvolatile configu-
ration register or bit 4 of the enhanced volatile configuration register.
For pin configurations that share the DQ3 pin with RESET#, the RESET# functionality is disabled
in QIO-SPI mode.
HOLD# Input HOLD: Pauses serial communications with the device without deselecting or resetting the de-
vice. Outputs are tri-stated and inputs are ignored. The HOLD# functionality can be disabled
using bit 4 of the nonvolatile configuration register or bit 4 of the enhanced volatile configura-
tion register.
For pin configurations that share the DQ3 pin with HOLD#, the HOLD# functionality is disabled
in QIO-SPI mode or when DTR operation is enabled.
W# Input Write protect: Freezes the status register in conjunction with the enable/disable bit of the sta-
tus register. When the enable/disable bit of the status register is set to 1 and the W# signal is
driven LOW, the status register nonvolatile bits become read-only and the WRITE STATUS REG-
ISTER operation will not execute. During the extended-SPI protocol with QOFR and QIOFR in-
structions, and with QIO-SPI protocol, this pin function is an input/output as DQ2 functionality.
This signal does not have internal pull-ups, it cannot be left floating and must be driven, even
if none of W#/DQ2 function is used.
DQ[3:0] I/O Serial I/O: The bidirectional DQ signals transfer address, data, and command information.
When using legacy (x1) SPI commands in extended I/O protocol (XIO-SPI), DQ0 is an input and
DQ1 is an output. DQ[3:2] are not used.
When using dual commands in XIO-SPI or when using DIO-SPI, DQ[1:0] are I/O. DQ[3:2] are not
used.
When using quad commands in XIO-SPI or when using QIO-SPI, DQ[3:0] are I/O.
VCC Supply Core and I/O power supply.
128Mb, 3V Multiple I/O Serial Flash Memory
Signal Descriptions
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 14 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Table 1: Signal Descriptions (Continued)
Symbol Type Description
VSS Supply Core and I/O ground connection.
DNU Do not use: Do not connect to any other signal, or power supply; must be left floating.
RFU Reserved for future use: Reserved by Micron for future device functionality and enhance-
ment. Recommend that these be left floating. May be connected internally, but external con-
nections will not affect operation.
NC No connect: No internal connection; can be driven or floated.
Package Dimensions – Package Code: 12
Figure 8: 24-Ball T-PBGA (5 x 5 ball grid array) – 6mm x 8mm
0.3 ±0.05
1.1 ±0.1
4 CTR
6 ±0.1
1 TYP
8 ±0.1
1 TYP
Ball A1 IDBall A1 ID
Seating plane
0.1 A
A
24X Ø0.4
Dimensions
apply to solder
balls post-reflow
on Ø0.40 SMD
ball pads.
4 CTR
A
B
C
D
E
135 24
Notes: 1. All dimensions are in millimeters.
128Mb, 3V Multiple I/O Serial Flash Memory
Package Dimensions – Package Code: 12
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 15 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
2. See Part Number Ordering Information for complete package names and details.
128Mb, 3V Multiple I/O Serial Flash Memory
Package Dimensions – Package Code: 12
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 16 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Package Dimensions – Package Code: 14
Figure 9: 24-Ball T-PBGA (24b05) – 6mm x 8mm
Notes: 1. All dimensions are in millimeters.
2. See Part Number Ordering Information for complete package names and details.
128Mb, 3V Multiple I/O Serial Flash Memory
Package Dimensions – Package Code: 14
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 17 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Package Dimensions – Package Code: SE
Figure 10: 8-Pin SOP2 (SO8W) – 208 Mils Body Width
0.1 MAX
1
1.70 MIN/
1.91 MAX 1.78 MIN/
2.16 MAX 0.15 MIN/
0.25 MAX
5.08 MIN/
5.49 MAX
5.08 MIN/
5.49 MAX
0.5 MIN/
0.8 MAX
0.05 MIN/
0.25 MAX 0º MIN/
10º MAX
7.70 MIN/
8.10 MAX
0.36 MIN/
0.48 MAX
1.27 TYP
Notes: 1. All dimensions are in millimeters.
2. See Part Number Ordering Information for complete package names and details.
128Mb, 3V Multiple I/O Serial Flash Memory
Package Dimensions – Package Code: SE
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 18 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Package Dimensions – Package Code: SF
Figure 11: 16-Pin SOP2 – 300 Mils Body Width
16
0.23 MIN/
0.32 MAX
18
9
0.40 MIN/
1.27 MAX
0.20 ±0.1
2.5 ±0.15
10.30 ±0.20
7.50 ±0.10
10.00 MIN/
10.65 MAX
0.33 MIN/
0.51 MAX
0.1 Z
0° MIN/8° MAX
1.27 TYP
h x 45°
Z
Notes: 1. All dimensions are in millimeters.
2. See Part Number Ordering Information for complete package names and details.
128Mb, 3V Multiple I/O Serial Flash Memory
Package Dimensions – Package Code: SF
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 19 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Package Dimensions – Package Code: W7
Figure 12: W-PDFN-8 (MLP8) – 6mm x 5mm
5 ±0.1
6 ±0.1
0 MIN
0.75 ±0.05
1.27
TYP
3 ±0.1
CTR
3 ±0.1
CTR
8X 0.4 ±0.05
CTR
8X 0.6 ±0.05 Pin A1 ID Pin A1 ID
3.81
CTR
Exposed die
attach pad.
Seating plane
0.08 A
A
Notes: 1. All dimensions are in millimeters.
2. See Part Number Ordering Information for complete package names and details.
128Mb, 3V Multiple I/O Serial Flash Memory
Package Dimensions – Package Code: W7
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 20 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Package Dimensions – Package Code: W9
Figure 13: W-PDFN-8 (MLP8) – 8mm x 6mm
Seating plane
0.08 A
A
0 MIN
0.75 ±0.05
3.81
CTR
6 ±0.1
8X 0.5 ±0.05
8 ±0.1
1.27
TYP 8X 0.4 ±0.05
CTR
Pin A1 ID
4.3 ±0.1
CTR
3.4 ±0.1
CTR
Exposed die
attach pad.
Pin A1 ID
Micron logo
to be lazed.
4
3
2
1
5
6
7
8
Notes: 1. All dimensions are in millimeters.
2. See Part Number Ordering Information for complete package names and details.
128Mb, 3V Multiple I/O Serial Flash Memory
Package Dimensions – Package Code: W9
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 21 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Memory Map – 128Mb Density
Table 2: Memory Map
Sector Subsector (32KB) Subsector (4KB)
Address Range
Start End
255 511 4095 00FF F000h 00FF FFFFh
4088 00FF 8000h 00FF 8FFFh
510 4087 00FF 7000h 00FF 7FFFh
4080 00FF 0000h 00FF 0FFFh
127 255 2047 007F F000h 007F FFFFh
2040 007F 8000h 007F 8FFFh
254 2039 007F 7000h 007F 7FFFh
2032 007F 0000h 007F 0FFFh
63 127 1023 003F F000h 003F FFFFh
1016 003F 8000h 003F 8FFFh
126 1015 003F 7000h 003F 7FFFh
1008 003F 0000h 003F 0FFFh
0 1 15 0000 F000h 0000 FFFFh
8 0000 8000h 0000 8FFFh
0 7 0000 7000h 0000 7FFFh
0 0000 0000h 0000 0FFFh
Note: 1. See Part Number Ordering Information, Sector Size – Part Numbers table for options.
128Mb, 3V Multiple I/O Serial Flash Memory
Memory Map – 128Mb Density
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 22 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Status Register
Status register bits can be read from or written to using READ STATUS REGISTER or
WRITE STATUS REGISTER commands, respectively. When the status register enable/
disable bit (bit 7) is set to 1 and W# is driven LOW, the status register nonvolatile bits
become read-only and the WRITE STATUS REGISTER operation will not execute. The
only way to exit this hardware-protected mode is to drive W# HIGH.
Table 3: Status Register
Bit Name Settings Description Notes
7 Status register
write enable/disa-
ble
0 = Enabled (Default)
1 = Disabled
Nonvolatile control bit: Used with W# to enable or
disable writing to the status register.
5 Top/bottom 0 = Top (Default)
1 = Bottom
Nonvolatile control bit: Determines whether the pro-
tected memory area defined by the block protect bits
starts from the top or bottom of the memory array.
6, 4:2 BP[3:0] See Protected Area ta-
bles
Nonvolatile control bit: Defines memory to be soft-
ware protected against PROGRAM or ERASE operations.
When one or more block protect bits is set to 1, a desig-
nated memory area is protected from PROGRAM and
ERASE operations.
1
1 Write enable latch 0 = Clear (Default)
1 = Set
Volatile control bit: The device always powers up with
this bit cleared to prevent inadvertent WRITE, PRO-
GRAM, or ERASE operations. To enable these operations,
the WRITE ENABLE operation must be executed first to
set this bit.
0 Write in progress 0 = Ready (Default)
1 = Busy
Volatile status bit: Indicates if one of the following
command cycles is in progress:
WRITE STATUS REGISTER
WRITE NONVOLATILE CONFIGURATION REGISTER
PROGRAM
ERASE
2
Notes: 1. The BULK ERASE command is executed only if all bits = 0.
2. Status register bit 0 is the inverse of flag status register bit 7.
128Mb, 3V Multiple I/O Serial Flash Memory
Status Register
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 23 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Block Protection Settings
Table 4: Protected Area
Status Register Content Protected Area
Top/Bottom BP3 BP2 BP1 BP0 64KB Sectors
0 0 0 0 0 None
0 0 0 0 1 255:255
0 0 0 1 0 255:254
0 0 0 1 1 255:252
0 0 1 0 0 255:248
0 0 1 0 1 255:240
0 0 1 1 0 255:224
0 0 1 1 1 255:192
0 1 0 0 0 255:128
0 1 0 0 1 255:0
0 1 0 1 0 255:0
0 1 0 1 1 255:0
0 1 1 0 0 255:0
0 1 1 0 1 255:0
0 1 1 1 0 255:0
0 1 1 1 1 255:0
1 0 0 0 0 None
1 0 0 0 1 0:0
1 0 0 1 0 1:0
1 0 0 1 1 3:0
1 0 1 0 0 7:0
1 0 1 0 1 15:0
1 0 1 1 0 31:0
1 0 1 1 1 63:0
1 1 0 0 0 127:0
1 1 0 0 1 255:0
1 1 0 1 0 255:0
1 1 0 1 1 255:0
1 1 1 0 0 255:0
1 1 1 0 1 255:0
1 1 1 1 0 255:0
1 1 1 1 1 255:0
128Mb, 3V Multiple I/O Serial Flash Memory
Status Register
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 24 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Flag Status Register
Flag status register bits are read by using READ FLAG STATUS REGISTER command. All
bits are volatile and are reset to zero on power-up.
Status bits are set and reset automatically by the internal controller. Error bits must be
cleared through the CLEAR STATUS REGISTER command.
Table 5: Flag Status Register
Bit Name Settings Description
7 Program or
erase
controller
0 = Busy
1 = Ready
Status bit: Indicates whether one of the following
command cycles is in progress: WRITE STATUS
REGISTER, WRITE NONVOLATILE CONFIGURATION
REGISTER, PROGRAM, or ERASE.
6 Erase suspend 0 = Clear
1 = Suspend
Status bit: Indicates whether an ERASE operation has been
or is going to be suspended.
5 Erase 0 = Clear
1 = Failure or protection error
Error bit: Indicates whether an ERASE operation has suc-
ceeded or failed.
4 Program 0 = Clear
1 = Failure or protection error
Error bit: Indicates whether a PROGRAM operation has suc-
ceeded or failed. It indicates, also, whether a CRC check has
succeeded or failed.
3 Reserved 0 Reserved
2 Program sus-
pend
0 = Clear
1 = Suspend
Status bit: Indicates whether a PROGRAM operation has
been or is going to be suspended.
1 Protection 0 = Clear
1 = Failure or protection error
Error bit: Indicates whether an ERASE or PROGRAM opera-
tion has attempted to modify the protected array sector, or
whether a PROGRAM operation has attempted to access the
locked OTP space.
0 Reserved 0 Reserved
128Mb, 3V Multiple I/O Serial Flash Memory
Flag Status Register
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 25 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Internal Configuration Register
The memory configuration is set by an internal configuration register that is not directly
accessible to users.
The user can change the default configuration at power up by using the WRITE NON-
VOLATILE CONFIGURATION REGISTER. Information from the nonvolatile configura-
tion register overwrites the internal configuration register during power-on or after a re-
set.
The user can change the configuration during operation by using the WRITE VOLATILE
CONFIGURATION REGISTER or the WRITE ENHANCED VOLATILE CONFIGURATION
REGISTER commands. Information from the volatile configuration registers overwrite
the internal configuration register immediately after the WRITE command completes.
Figure 14: Internal Configuration Register
Register download is executed only during
the power-on phase or after a reset,
overwriting configuration register settings
on the internal configuration register.
Register download is executed after a
WRITE VOLATILE OR ENHANCED VOLATILE
CONFIGURATION REGISTER command,
overwriting configuration register
settings on the internal configuration register.
Nonvolatile configuration register
Internal configuration
register
Device behavior
Volatile configuration register and
enhanced volatile configuration register
128Mb, 3V Multiple I/O Serial Flash Memory
Internal Configuration Register
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 26 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Nonvolatile Configuration Register
This register is read from and written to using the READ NONVOLATILE CONFIGURA-
TION REGISTER and the WRITE NONVOLATILE CONFIGURATION REGISTER com-
mands, respectively. A register download is executed during power-on or after reset,
overwriting the internal configuration register settings that determine device behavior.
A WRITE NONVOLATILE CONFIGURATION REGISTER command to a reserved setting
is ignored, flag status register bit 1 is set, and the write enable latch bit is cleared.
Table 6: Nonvolatile Configuration Register
Bit Name Settings Description Notes
15:12 Number of dum-
my clock cycles
0000 = identical to 1111
0001 = 1
0010 = 2
.
.
1101 = 13
1110 = 14
1111 = Default
Sets the number of dummy clock cycles subse-
quent to all FAST READ commands
(See the Command Set Table for default setting
values).
1
11:9 XIP mode at
power-on
reset
000 = XIP: Fast read
001 = XIP: Dual output fast read
010 = XIP: Dual I/O fast read
011 = XIP: Quad output fast read
100 = XIP: Quad I/O fast read
101 = Reserved
110 = Reserved
111 = Disabled (Default)
Enables the device to operate in the selected XIP
mode immediately after power-on reset.
8:6 Output driver
strength
000 = Reserved
001 = 90 Ohms
010 = Reserved
011 = 45 Ohms
100 = Reserved
101 = 20 Ohms
110 = Reserved
111 = 30 Ohms (Default)
Optimizes the impedance at VCC/2 output voltage.
5 Double transfer
rate protocol
0 = Enabled
1 = Disabled (Default)
Set DTR protocol as current one. Once enabled, all
commands will work in DTR.
4 Reset/hold 0 = Disabled
1 = Enabled (Default)
Enables or disables HOLD# or RESET# on DQ3.
3 Quad I/O
protocol
0 = Enabled
1 = Disabled (Default)
Enables or disables quad I/O command input
(4-4-4 mode).
2
2 Dual I/O
protocol
0 = Enabled
1 = Disabled (Default)
Enables or disables dual I/O command input (2-2-2
mode).
2
1 Reserved 1 Reserved
128Mb, 3V Multiple I/O Serial Flash Memory
Nonvolatile Configuration Register
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 27 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Table 6: Nonvolatile Configuration Register (Continued)
Bit Name Settings Description Notes
0 Reserved 1 Reserved
Notes: 1. The number of cycles must be set to accord with the clock frequency, which varies by the
type of FAST READ command (See Supported Clock Frequencies table). Insufficient dum-
my clock cycles for the operating frequency causes the memory to read incorrect data.
2. When bits 2 and 3 are both set to 0, the device operates in quad I/O protocol.
128Mb, 3V Multiple I/O Serial Flash Memory
Nonvolatile Configuration Register
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 28 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Volatile Configuration Register
This register is read from and written to by the READ VOLATILE CONFIGURATION
REGISTER and the WRITE VOLATILE CONFIGURATION REGISTER commands, respec-
tively. A register download is executed after these commands, overwriting the internal
configuration register settings that determine device memory behavior.
Table 7: Volatile Configuration Register
Bit Name Settings Description Notes
7:4 Number of
dummy clock
cycles
0000 = Identical to 1111
0001 = 1
0010 = 2
1101 = 13
1110 = 14
1111 = Default
Sets the number of dummy clock cycles subsequent to all
FAST READ commands.
(See the Command Set Table for default setting values.)
1
3 XIP 0 = Enable
1 = Disable (default)
Enables or disables XIP.
2 Reserved 0 0b = Fixed value.
1:0 Wrap 00 = 16-byte boundary
aligned
16-byte wrap: Output data wraps within an aligned 16-byte
boundary starting from the 3-byte address issued after the
command code.
2
01 = 32-byte boundary
aligned
32-byte wrap: Output data wraps within an aligned 32-byte
boundary starting from the 3-byte address issued after the
command code.
10 = 64-byte boundary
aligned
64-byte wrap: Output data wraps within an aligned 64-byte
boundary starting from the 3-byte address issued after the
command code.
11 = Continuous (default) Continuously sequences addresses through the entire array.
Notes: 1. The number of cycles must be set according to and sufficient for the clock frequency,
which varies by the type of FAST READ command, as shown in the Supported Clock Fre-
quencies table. An insufficient number of dummy clock cycles for the operating frequen-
cy causes the memory to read incorrect data.
2. See the Sequence of Bytes During Wrap table.
Table 8: Sequence of Bytes During Wrap
Starting Address 16-Byte Wrap 32-Byte Wrap 64-Byte Wrap
0 0-1-2- . . . -15-0-1- . . 0-1-2- . . . -31-0-1- . . 0-1-2- . . . -63-0-1- . .
1 1-2- . . . -15-0-1-2- . . 1-2- . . . -31-0-1-2- . . 1-2- . . . -63-0-1-2- . .
.... .... .... ....
15 15-0-1-2-3- . . . -15-0-1- . . 15-16-17- . . . -31-0-1- . . 15-16-17- . . . -63-0-1- . .
.... .... .... ....
31 31-0-1-2-3- . . . -31-0-1- . . 31-32-33- . . . -63-0-1- . .
.... .... .... ....
63 63-0-1- . . . -63-0-1- . .
128Mb, 3V Multiple I/O Serial Flash Memory
Volatile Configuration Register
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 29 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Supported Clock Frequencies
Table 9: Clock Frequencies – STR (in MHz)
Notes apply to entire table
Number of
Dummy
Clock Cycles FAST READ
DUAL OUTPUT
FAST READ
DUAL I/O FAST
READ
QUAD OUTPUT
FAST READ
QUAD I/O FAST
READ
1 94 79 60 44 39
2 112 97 77 61 48
3 129 106 86 78 58
4 133 115 97 97 69
5 133 125 106 106 78
6 133 133 115 115 86
7 133 133 125 125 97
8 133 133 133 133 106
9 133 133 133 133 115
10 133 133 133 133 125
11 : 14 133 133 133 133 133
Notes: 1. Values are guaranteed by characterization and not 100% tested in production.
2. A tuning data pattern (TDP) capability provides applications with data patterns for ad-
justing the data latching point at the host end when the clock frequency is set higher
than 133 MHz in STR mode and higher than 66 MHz in double transfer rate (DTR) mode.
For additional details, refer to TN-25-07: Tuning Data Pattern for MT25Q and MT25T De-
vices.
128Mb, 3V Multiple I/O Serial Flash Memory
Volatile Configuration Register
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 30 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Table 10: Clock Frequencies – DTR (in MHz)
Notes apply to entire table
Number of
Dummy
Clock Cycles FAST READ
DUAL OUTPUT
FAST READ
DUAL I/O FAST
READ
QUAD OUTPUT
FAST READ
QUAD I/O FAST
READ
1 59 45 40 26 20
2 73 59 49 40 30
3 82 68 59 59 39
4 90 76 65 65 49
5 90 83 75 75 58
6 90 90 83 83 68
7 90 90 90 90 78
8 90 90 90 90 85
9 90 90 90 90 90
10 : 14 90 90 90 90 90
Notes: 1. Values are guaranteed by characterization and not 100% tested in production.
2. A tuning data pattern (TDP) capability provides applications with data patterns for ad-
justing the data latching point at the host end when the clock frequency is set higher
than 133 MHz in STR mode and higher than 66 MHz in double transfer rate (DTR) mode.
For additional details, refer to TN-25-07: Tuning Data Pattern for MT25Q and MT25T De-
vices.
128Mb, 3V Multiple I/O Serial Flash Memory
Volatile Configuration Register
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 31 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Enhanced Volatile Configuration Register
This register is read from and written to using the READ ENHANCED VOLATILE CON-
FIGURATION REGISTER and the WRITE ENHANCED VOLATILE CONFIGURATION
REGISTER commands, respectively. A register download is executed after these com-
mands, overwriting the internal configuration register settings that determine device
memory behavior.
Table 11: Enhanced Volatile Configuration Register
Bit Name Settings Description Notes
7 Quad I/O protocol 0 = Enabled
1 = Disabled (default)
Enables or disables quad I/O command input
(4-4-4 mode).
1
6 Dual I/O protocol 0 = Enabled
1 = Disabled (default)
Enables or disables dual I/O command input
(2-2-2 mode).
1
5 Double transfer rate
protocol
0 = Enabled
1 = Disabled (Default,
single transfer rate)
Set DTR protocol as current one. Once enabled,
all commands will work in DTR.
4 Reset/hold 0 = Disabled
1 = Enabled (default)
Enables or disables HOLD# or RESET# on DQ3.
(Available only on specified part numbers.)
3 Reserved 1
2:0 Output driver strength 000 = Reserved
001 = 90 ohms
010 = Reserved
011 = 45 ohms
100 = Reserved
101 = 20 ohms
110 = Reserved
111 = 30 ohms (de-
fault)
Optimizes the impedance at VCC/2 output volt-
age.
Note: 1. When bits 6 and 7 are both set to 0, the device operates in quad I/O protocol. When ei-
ther bit 6 or 7 is set to 0, the device operates in dual I/O or quad I/O respectively. When a
bit is set, the device enters the selected protocol immediately after the WRITE EN-
HANCED VOLATILE CONFIGURATION REGISTER command. The device returns to the de-
fault protocol after the next power-on or reset. Also, the rescue sequence or another
WRITE ENHANCED VOLATILE CONFIGURATION REGISTER command will return the de-
vice to the default protocol.
128Mb, 3V Multiple I/O Serial Flash Memory
Enhanced Volatile Configuration Register
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 32 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Security Registers
Security registers enable sector and password protection on multiple levels using non-
volatile and volatile register and bit settings (shown below). The applicable register ta-
bles follow.
Figure 15: Sector and Password Protection
.
.
.
nn
Sector Protection Register
15 1314 2 01
Global Freeze Bit
n
1st sector
0
0
1
1
1
1
2nd sector
3rd sector
Last sector
Memory Sectors
.
.
.
.
.
.
0
0
0
1
1
0
Volatile
Lock Bits
.
.
.
locked
locked
locked
locked
Nonvolatile
Lock Bits
(See Note 1)
(See Note 2)
(See Note 3) (See Note 4)
Notes: 1. Sector protection register. This 16-bit nonvolatile register includes two active bits[2:1]
to enable sector and password protection.
2. Global freeze bit. This volatile bit protects the settings in all nonvolatile lock bits.
3. Nonvolatile lock bits. Each nonvolatile bit corresponds to and provides nonvolatile
protection for an individual memory sector, which remains locked (protection enabled)
until its corresponding bit is cleared to 1.
4. Volatile lock bits. Each volatile bit corresponds to and provides volatile protection for
an individual memory sector, which is locked temporarily (protection is cleared when the
device is reset or powered down).
5. The first and last sectors will have volatile protections at the 4KB subsector level. Each
4KB subsector in these sectors can be individually locked by volatile lock bits setting;
nonvolatile protections granularity remain at the sector level.
128Mb, 3V Multiple I/O Serial Flash Memory
Security Registers
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 33 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Sector Protection Security Register
Table 12: Sector Protection Register
Bits Name Settings Description Notes
15:3 Reserved 1 = Default
2 Password
protection
lock
1 = Disabled (default)
0 = Enabled
Nonvolatile bit: When set to 1, password protection is dis-
abled. When set to 0, password protection is enabled per-
manently; the 64-bit password cannot be retrieved or reset.
1, 2
1 Sector
protection
lock
1 = Enabled, with password
protection (default)
0 = Enabled, without pass-
word protection
Nonvolatile bit: When set to 1, nonvolatile lock bits can
be set to lock/unlock their corresponding memory sectors;
bit 2 can be set to 0, enabling password protection perma-
nently.
When set to 0, nonvolatile lock bits can be set to lock/
unlock their corresponding memory sectors; bit 2 must re-
main set to 1, disabling password protection permanently.
1, 3, 4
0 Reserved 1 = Default
Notes: 1. Bits 2 and 1 are user-configurable, one-time-programmable, and mutually exclusive in
that only one of them can be set to 0. It is recommended that one of the bits be set to 0
when first programming the device.
2. The 64-bit password must be programmed and verified before this bit is set to 0 because
after it is set, password changes are not allowed, thus providing protection from mali-
cious software. When this bit is set to 0, a 64-bit password is required to reset the global
freeze bit from 0 to 1. In addition, if the password is incorrect or lost, the global freeze
bit can no longer be set and nonvolatile lock bits cannot be changed. (See the Sector
and Password Protection figure and the Global Freeze Bit Definition table).
3. Whether this bit is set to 1 or 0, it enables programming or erasing nonvolatile lock bits
(which provide memory sector protection). The password protection bit must be set be-
forehand because setting this bit will either enable password protection permanently
(bit 2 = 0) or disable password protection permanently (bit 1 = 0).
4. By default, all sectors are unlocked when the device is shipped from the factory. Sectors
are locked, unlocked, read, or locked down as explained in the Nonvolatile and Volatile
Lock Bits table and the Volatile Lock Bit Register Bit Definitions table.
Table 13: Global Freeze Bit
Bits Name Settings Description
7:1 Reserved 0 Bit values are 0
0 Global
freeze bit
1 = Disabled
(default)
0 = Enabled
Volatile bit: When set to 1, all nonvolatile lock bits can be set to enable or
disable locking their corresponding memory sectors.
When set to 0, nonvolatile lock bits are protected from PROGRAM or ERASE
commands. This bit should not be set to 0 until the nonvolatile lock bits are
set.
Note: 1. The READ GLOBAL FREEZE BIT command enables reading this bit. When password pro-
tection is enabled, this bit is locked upon device power-up or reset. It cannot be
changed without the password. After the password is entered, the UNLOCK PASSWORD
command resets this bit to 1, enabling programing or erasing the nonvolatile lock bits.
After the bits are changed, the WRITE GLOBAL FREEZE BIT command sets this bit to 0,
protecting the nonvolatile lock bits from PROGRAM or ERASE operations.
128Mb, 3V Multiple I/O Serial Flash Memory
Sector Protection Security Register
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 34 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Nonvolatile and Volatile Sector Lock Bits Security
Table 14: Nonvolatile and Volatile Lock Bits
Bit
Details Nonvolatile Lock Bit Volatile Lock Bit
Description Each sector of memory has one corresponding non-
volatile lock bit
Each sector of memory has one corresponding vola-
tile lock bit; this bit is the sector write lock bit descri-
bed in the Volatile Lock Bit Register table.
Function When set to 0, locks and protects its corresponding
memory sector from PROGRAM or ERASE operations.
Because this bit is nonvolatile, the sector remains
locked, protection enabled, until the bit is cleared to
1.
When set to 1, locks and protects its corresponding
memory sector from PROGRAM or ERASE operations.
Because this bit is volatile, protection is temporary.
The sector is unlocked, protection disabled, upon de-
vice reset or power-down.
Settings 1 = Lock disabled
0 = Lock enabled
0 = Lock disabled
1 = Lock enabled
Enabling
protection
The bit is set to 0 by the WRITE NONVOLATILE LOCK
BITS command, enabling protection for designated
locked sectors. Programming a sector lock bit re-
quires the typical byte programming time.
The bit is set to 1 by the WRITE VOLATILE LOCK BITS
command, enabling protection for designated locked
sectors.
Disabling
protection
All bits are cleared to 1 by the ERASE NONVOLATILE
LOCK BITS command, unlocking and disabling pro-
tection for all sectors simultaneously. Erasing all sec-
tor lock bits requires typical sector erase time.
All bits are set to 0 upon reset or power-down, un-
locking and disabling protection for all sectors.
Reading
the bit
Bits are read by the READ NONVOLATILE LOCK BITS
command.
Bits are read by the READ VOLATILE LOCK BITS com-
mand.
Volatile Lock Bit Security Register
One volatile lock bit register is associated with each sector of memory. It enables the
sector to be locked, unlocked, or locked-down with the WRITE VOLATILE LOCK BITS
command, which executes only when sector lock down (bit 1) is set to 0. Each register
can be read with the READ VOLATILE LOCK BITS command. This register is compatible
with and provides the same locking capability as the lock register in the Micron N25Q
SPI NOR family.
Table 15: Volatile Lock Bit Register
Bit Name Settings Description
7:2 Reserved 0 Bit values are 0.
1 Sector
lock down
0 = Lock-down disabled (default)
1 = Lock-down enabled
Volatile bit: Device always powers up with this bit set to 0 so that
sector lock down and sector write lock bits can be set to 1. When
this bit set to 1, neither of the two volatile lock bits can be written
to until the next power cycle, hardware, or software reset.
0 Sector
write lock
0 = Write lock disabled (default)
1 = Write lock enabled
Volatile bit: Device always powers up with this bit set to 0 so that
PROGRAM and ERASE operations in this sector can be executed
and sector content modified. When this bit is set to 1, PROGRAM
and ERASE operations in this sector are not executed.
128Mb, 3V Multiple I/O Serial Flash Memory
Nonvolatile and Volatile Sector Lock Bits Security
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 35 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Device ID Data
The device ID data shown in the tables here is read by the READ ID and MULTIPLE I/O
READ ID operations.
Table 16: Device ID Data
Byte# Name Content Value Assigned By
Manufacturer ID (1 byte total)
1 Manufacturer ID (1 byte) 20h JEDEC
Device ID (2 bytes total)
2 Memory type (1 byte) BAh = 3V Manufacturer
BBh = 1.8V
3 Memory capacity (1 byte) 22h = 2Gb
21h = 1Gb
20h = 512Mb
19h = 256Mb
18h = 128Mb
17h = 64Mb
Unique ID (17 bytes total)
4 Indicates the number of remaining ID bytes
(1 byte)
10h Factory
5 Extended device ID (1 byte) See Extended Device ID table
6 Device configuration information (1 byte) 00h = Standard
7:20 Customized factory data (14 bytes) Unique ID code (UID)
Table 17: Extended Device ID Data, First Byte
Bit 7 Bit 6 Bit 51Bit 4 Bit 3 Bit 22Bit 1 Bit 0
Reserved Device
Generation
1 = 2nd
generation
1 = Alternate BP
scheme
0 = Standard BP
scheme
Reserved HOLD#/RESET#:
0 = HOLD
1 = RESET
Additional HW
RESET#:
1 = Available
0 = Not available
Sector size:
00 = Uniform
64KB
Notes: 1. For alternate BP scheme information, contact the factory.
2. Available for specific part numbers. See Part Number Ordering Information for details.
128Mb, 3V Multiple I/O Serial Flash Memory
Device ID Data
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 36 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Serial Flash Discovery Parameter Data
The serial Flash discovery parameter (SFDP) provides a standard, consistent method to
describe serial Flash device functions and features using internal parameter tables. The
parameter tables can be interrogated by host system software, enabling adjustments to
accommodate divergent features from multiple vendors. The SFDP standard defines a
common parameter table that describes important device characteristics and serial ac-
cess methods used to read the parameter table data.
Micron's SFDP table information aligns with JEDEC-standard JESD216 for serial Flash
discoverable parameters. The latest JEDEC standard includes revision 1.6. Beginning
week 42 (2014), Micron's MT25Q production parts will include SFDP data that aligns
with revision 1.6.
Refer to JEDEC-standard JESD216B for a complete overview of the SFDP table defini-
tion.
Data in the SFDP tables is read by the READ SERIAL FLASH DISCOVERY PARAMETER
operation.
See Micron TN-25-06: Serial Flash Discovery Parameters for MT25Q Family for serial
Flash discovery parameter data.
128Mb, 3V Multiple I/O Serial Flash Memory
Serial Flash Discovery Parameter Data
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 37 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Command Definitions
Table 18: Command Set
Notes 1 and 2 apply to the entire table
Command Code
Command-Address-Data
Address
Bytes
Dummy Clock Cycles
Data
Bytes Notes
Extended
-SPI
Dual
-SPI
Quad
-SPI
Extended
-SPI
Dual
-SPI
Quad
-SPI
Software RESET Operations
RESET ENABLE 66h 1-0-0 2-0-0 4-0-0 0 0 0 0 0
RESET MEMORY 99h 1-0-0 2-0-0 4-0-0 0 0 0 0 0
READ ID Operations
READ ID 9E/9Fh 1-0-1 0 0 1 to 20
MULTIPLE I/O READ ID AFh 1-0-1 2-0-2 4-0-4 0 0 0 0 1 to 20
READ SERIAL FLASH DISCOVERY
PARAMETER
5Ah 1-1-1 2-2-2 4-4-4 3 8 8 8 1 to 3
READ MEMORY Operations
READ 03h 1-1-1 3 0 0 0 1 to
FAST READ 0Bh 1-1-1 2-2-2 4-4-4 3 8 8 10 1 to 4
DUAL OUTPUT FAST READ 3Bh 1-1-2 2-2-2 3 8 8 1 to 4
DUAL INPUT/OUTPUT FAST READ BBh 1-2-2 2-2-2 3 8 8 1 to 4
QUAD OUTPUT FAST READ 6Bh 1-1-4 4-4-4 3 8 10 1 to 4
QUAD INPUT/OUTPUT FAST READ EBh 1-4-4 4-4-4 3 10 10 1 to 4
DTR FAST READ 0Dh 1-1-1 2-2-2 4-4-4 3 6 6 8 1 to 4
DTR DUAL OUTPUT FAST READ 3Dh 1-1-2 2-2-2 3 6 6 1 to 4
DTR DUAL INPUT/OUTPUT FAST
READ
BDh 1-2-2 2-2-2 3 6 6 1 to 4
DTR QUAD OUTPUT FAST READ 6Dh 1-1-4 4-4-4 3 6 8 1 to 4
DTR QUAD INPUT/OUTPUT FAST
READ
EDh 1-4-4 4-4-4 3 8 8 1 to 4
QUAD INPUT/OUTPUT WORD
READ
E7h 1-4-4 4-4-4 3 4 4 1 to
WRITE Operations
WRITE ENABLE 06h 1-0-0 2-0-0 4-0-0 0 0 0 0 0
WRITE DISABLE 04h 1-0-0 2-0-0 4-0-0 0 0 0 0 0
READ REGISTER Operations
READ STATUS REGISTER 05h 1-0-1 2-0-2 4-0-4 0 0 0 0 1 to
128Mb, 3V Multiple I/O Serial Flash Memory
Command Definitions
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 38 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Table 18: Command Set (Continued)
Notes 1 and 2 apply to the entire table
Command Code
Command-Address-Data
Address
Bytes
Dummy Clock Cycles
Data
Bytes Notes
Extended
-SPI
Dual
-SPI
Quad
-SPI
Extended
-SPI
Dual
-SPI
Quad
-SPI
READ FLAG STATUS REGISTER 70h 1-0-1 2-0-2 4-0-4 0 0 0 0 1 to
READ NONVOLATILE CONFIGU-
RATION REGISTER
B5h 1-0-1 2-0-2 4-0-4 0 0 0 0 2 to
READ VOLATILE CONFIGURATION
REGISTER
85h 1-0-1 2-0-2 4-0-4 0 0 0 0 1 to
READ ENHANCED VOLATILE CON-
FIGURATION REGISTER
65h 1-0-1 2-0-2 4-0-4 0 0 0 0 1 to
READ GENERAL PURPOSE READ
REGISTER
96h 1-0-1 2-0-2 4-0-4 0 8 8 8 1 to 5, 6
WRITE REGISTER Operations
WRITE STATUS REGISTER 01h 1-0-1 2-0-2 4-0-4 0 0 0 0 1 7
WRITE NONVOLATILE CONFIGU-
RATION REGISTER
B1h 1-0-1 2-0-2 4-0-4 0 0 0 0 2 7
WRITE VOLATILE CONFIGURA-
TION REGISTER
81h 1-0-1 2-0-2 4-0-4 0 0 0 0 1 7
WRITE ENHANCED VOLATILE
CONFIGURATION REGISTER
61h 1-0-1 2-0-2 4-0-4 0 0 0 0 1 7
CLEAR FLAG STATUS REGISTER Operation
CLEAR FLAG STATUS REGISTER 50h 1-0-0 2-0-0 4-0-0 0 0 0 0 0
PROGRAM Operations
PAGE PROGRAM 02h 1-1-1 2-2-2 4-4-4 3 0 0 0 1 to 256 7
DUAL INPUT FAST PROGRAM A2h 1-1-2 2-2-2 3 0 0 1 to 256 7
EXTENDED DUAL INPUT FAST
PROGRAM
D2h 1-2-2 2-2-2 3 0 0 1 to 256 7
QUAD INPUT FAST PROGRAM 32h 1-1-4 4-4-4 3 0 0 1 to 256 7
EXTENDED QUAD INPUT FAST
PROGRAM
38h 1-4-4 4-4-4 3 0 0 1 to 256 7
ERASE Operations
32KB SUBSECTOR ERASE 52h 1-1-0 2-2-0 4-4-0 3 0 0 0 0 7
4KB SUBSECTOR ERASE 20h 1-1-0 2-2-0 4-4-0 3 0 0 0 0 7
SECTOR ERASE D8h 1-1-0 2-2-0 4-4-0 3 0 0 0 0 7
128Mb, 3V Multiple I/O Serial Flash Memory
Command Definitions
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 39 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Table 18: Command Set (Continued)
Notes 1 and 2 apply to the entire table
Command Code
Command-Address-Data
Address
Bytes
Dummy Clock Cycles
Data
Bytes Notes
Extended
-SPI
Dual
-SPI
Quad
-SPI
Extended
-SPI
Dual
-SPI
Quad
-SPI
BULK ERASE C7h/60h 1-0-0 2-0-0 4-0-0 0 0 0 0 0 7
SUSPEND/RESUME Operations
PROGRAM/ERASE SUSPEND 75h 1-0-0 2-0-0 4-0-0 0 0 0 0 0
PROGRAM/ERASE RESUME 7Ah 1-0-0 2-0-0 4-0-0 0 0 0 0 0
ONE-TIME PROGRAMMABLE (OTP) Operations
READ OTP ARRAY 4Bh 1-1-1 2-2-2 4-4-4 3 8 8 10 1 to 64 4
PROGRAM OTP ARRAY 42h 1-1-1 2-2-2 4-4-4 3 0 0 0 1 to 64 7
QUAD PROTOCOL Operations
ENTER QUAD INPUT/OUTPUT
MODE
35h 1-0-0 2-0-0 4-0-0 0 0 0 0 0
RESET QUAD INPUT/OUTPUT
MODE
F5h 1-0-0 2-0-0 4-0-0 0 0 0 0 0
DEEP POWER-DOWN Operations
ENTER DEEP POWER-DOWN B9h 1-0-0 2-0-0 4-0-0 0 0 0 0 0
RELEASE FROM DEEP POWER-
DOWN
ABh 1-0-0 2-0-0 4-0-0 0 0 0 0 0
ADVANCED SECTOR PROTECTION Operations
READ SECTOR PROTECTION 2Dh 1-0-1 2-0-2 4-0-4 0 0 0 0 1 to
PROGRAM SECTOR PROTECTION 2Ch 1-0-1 2-0-2 4-0-4 0 0 0 0 2 7
READ VOLATILE LOCK BITS E8h 1-1-1 2-2-2 4-4-4 3 0 0 0 1 to 8
WRITE VOLATILE LOCK BITS E5h 1-1-1 2-2-2 4-4-4 3 0 0 0 1 7,9
READ NONVOLATILE LOCK BITS E2h 1-1-1 2-2-2 4-4-4 4 0 0 0 1 to
WRITE NONVOLATILE LOCK BITS E3h 1-1-0 2-2-0 4-4-0 4 0 0 0 0 7
ERASE NONVOLATILE LOCK BITS E4h 1-0-0 2-0-0 4-0-0 0 0 0 0 0 7
READ GLOBAL FREEZE BIT A7h 1-0-1 0 0 0 0 1 to
WRITE GLOBAL FREEZE BIT A6h 1-0-0 2-0-0 4-0-0 0 0 0 0 0 7
READ PASSWORD 27h 1-0-1 0 0 0 0 1 to
WRITE PASSWORD 28h 1-0-1 2-0-2 4-0-4 0 0 0 0 8 7
UNLOCK PASSWORD 29h 1-0-1 2-0-2 4-0-4 0 0 0 0 8
ADVANCED FUNCTION INTERFACE Operations
128Mb, 3V Multiple I/O Serial Flash Memory
Command Definitions
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 40 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Table 18: Command Set (Continued)
Notes 1 and 2 apply to the entire table
Command Code
Command-Address-Data
Address
Bytes
Dummy Clock Cycles
Data
Bytes Notes
Extended
-SPI
Dual
-SPI
Quad
-SPI
Extended
-SPI
Dual
-SPI
Quad
-SPI
INTERFACE ACTIVATION 9Bh 1-0-0 2-0-0 4-0-0 0 0 0 0 0
CYCLIC REDUNDANCY CHECK 9Bh/27h 1-0-1 2-0-2 4-0-4 0 0 0 0 10 or 18
128Mb, 3V Multiple I/O Serial Flash Memory
Command Definitions
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 41 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Notes: 1. Micron extended-SPI protocol is the standard SPI protocol with additional commands
that extend functionality and enable address or data transmission on multiple DQn
lines.
2. The command code is always transmitted on DQn = 1, 2, or 4 lines according to the
standard, dual, or quad protocol respectively. However, a command may be able to
transmit address and data on multiple DQn lines regardless of protocol. The protocol
columns show the number of DQn lines a command uses to transmit command, address,
and data information as shown in these examples: command-address-data = 1-1-1, or
1-2-2, or 2-4-4, and so on.
3. The number of dummy cycles for the READ SFDP command is fixed (8 dummy cycles) and
is not affected by dummy cycle settings in the nonvolatile configuration register and
volatile configuration register. For the max clock frequency achievable refer to Suppor-
ted Clock Frequencies tables for 8 dummy cycles.
4. The number of dummy clock cycles required when shipped from Micron factories. The
user can modify the dummy clock cycle number via the nonvolatile configuration regis-
ter and the volatile configuration register.
5. The number of dummy cycles for the READ GENERAL PURPOSE READ REGISTER com-
mand is fixed (8 dummy cycles) and is not affected by dummy cycle settings in the non-
volatile configuration register and volatile configuration register.
6. The general purpose read register is 64 bytes. After the first 64 bytes, the device outputs
00h and does not wrap.
7. The WRITE ENABLE command must be issued first before this operation can be execu-
ted.
8. Formerly referred to as the READ LOCK REGISTER operation.
9. Formerly referred to as the WRITE LOCK REGISTER operation.
128Mb, 3V Multiple I/O Serial Flash Memory
Command Definitions
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 42 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Software RESET Operations
RESET ENABLE and RESET MEMORY Commands
To initiate these commands, S# is driven LOW and the command code is input on DQn.
A minimum de-selection time of tSHSL2 must come between RESET ENABLE and RE-
SET MEMORY or reset is not guaranteed. Then, S# must be driven HIGH for the device
to enter power-on reset. A time of tSHSL3 is required before the device can be re-selec-
ted by driving S# LOW.
Table 19: RESET ENABLE and RESET MEMORY Operations
Operation Name Description/Conditions
RESET ENABLE (66h) To reset the device, the RESET ENABLE command must be followed by the RESET MEMORY
command. When the two commands are executed, the device enters a power-on reset con-
dition. It is recommended to exit XIP mode before executing these two commands.
All volatile lock bits, the volatile configuration register, and the enhanced volatile configu-
ration register are reset to the power-on reset default condition according to nonvolatile
configuration register settings.
If a reset is initiated while a WRITE, PROGRAM, or ERASE operation is in progress or sus-
pended, the operation is aborted and data may be corrupted.
Reset is effective after the flag status register bit 7 outputs 1 with at least one byte output.
A RESET ENABLE command is not accepted during WRITE STATUS REGISTER and WRITE
NONVOLATILE CONFIGURATION REGISTER operations.
RESET MEMORY (99h)
Figure 16: RESET ENABLE and RESET MEMORY Command
C
S#
DQ0
01234567 01234567
Reset enable Reset memory
Note: 1. Above timing diagram is showed for extended-SPI protocol case, however these com-
mands are available in all protocols. In DIO-SPI protocol, the instruction bits are trans-
mitted on both DQ0 and DQ1 pins. In QIO-SPI protocol the instruction bits are transmit-
ted on all four data pins. In Extended-DTR-SPI protocol, the instruction bits are transmit-
ted on DQ0 pin in double transfer rate mode. In DIO-DTR-SPI protocol, the instruction
bits are transmitted on both DQ0 and DQ1 pins in double transfer rate mode. In QIO-
DTR-SPI protocol, the instruction bits are transmitted on all four data pins in double
transfer rate mode.
128Mb, 3V Multiple I/O Serial Flash Memory
Software RESET Operations
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 43 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
READ ID Operations
READ ID and MULTIPLE I/O READ ID Commands
To initiate these commands, S# is driven LOW and the command code is input on DQn.
When S# is driven HIGH, the device goes to standby. The operation is terminated by
driving S# HIGH at any time during data output.
Table 20: READ ID and MULTIPLE I/O READ ID Operations
Operation Name Description/Conditions
READ ID (9Eh/9Fh) Outputs information shown in the Device ID Data tables. If an ERASE or PROGRAM cycle is
in progress when the command is initiated, the command is not decoded and the com-
mand cycle in progress is not affected.
MULTIPLE I/O READ ID (AFh)
Figure 17: READ ID and MULTIPLE I/O READ ID Commands
UID
Device
identification
Manufacturer
identification
High-Z
DQ1
MSB MSB
DOUT DOUT DOUT DOUT
LSB
LSB
7 8 15 16 32
31
0
C
MSB
DQ0
LSB
Command
MSB
DOUT DOUT
LSB
Extended (READ ID)
Dual (MULTIPLE I/O READ ID )
Quad (MULTIPLE I/O READ ID )
Don’t Care
3 4 7815
0
C
MSB
DQ[1:0]
LSB
Command
Device
identification
Manufacturer
identification
MSB MSB
DOUT DOUT DOUT DOUT
LSB
LSB
1 2 347
0
C
MSB
DQ[3:0]
LSB
Command
Device
identification
Manufacturer
identification
MSB MSB
DOUT DOUT DOUT DOUT
LSB
LSB
Note: 1. S# not shown.
128Mb, 3V Multiple I/O Serial Flash Memory
READ ID Operations
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 44 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
READ SERIAL FLASH DISCOVERY PARAMETER Operation
READ SERIAL FLASH DISCOVERY PARAMETER Command
To execute READ SERIAL FLASH DISCOVERY PARAMETER command, S# is driven
LOW. The command code is input on DQ0, followed by three address bytes and eight
dummy clock cycles. The device outputs the information starting from the specified ad-
dress. When the 2048-byte boundary is reached, the data output wraps to address 0 of
the serial Flash discovery parameter table. The operation is terminated by driving S#
HIGH at any time during data output.
Note: The operation always executes in continuous mode so the read burst wrap setting
in the volatile configuration register does not apply.
Figure 18: READ SERIAL FLASH DISCOVERY PARAMETER Command – 5Ah
7 8 Cx
0
C
MSB
DQ0
LSB
Command
A[MAX]
A[MIN]
3 4 Cx
0
C
MSB
DQ[1:0]
LSB
Command
A[MAX]
A[MIN]
MSB
DOUT DOUT DOUT DOUT DOUT
LSB
Dummy cycles
1 2 Cx
0
C
MSB
DQ[3:0]
LSB
Command
A[MAX]
A[MIN]
MSB
DOUT DOUT DOUT
LSB
Dummy cycles
Extended
MSB
DOUT DOUT DOUT DOUT DOUT
LSB
DOUT DOUT DOUT DOUT
Dummy cycles
Dual
Quad
DQ1 High-Z
Don’t Care
Notes: 1. For extended protocol, Cx = 7 + (A[MAX] + 1); For dual protocol, Cx = 3 + (A[MAX] + 1)/2;
For quad protocol, Cx = 1 + (A[MAX] + 1)/4.
2. S# not shown.
128Mb, 3V Multiple I/O Serial Flash Memory
READ SERIAL FLASH DISCOVERY PARAMETER Operation
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 45 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
READ MEMORY Operations
To initiate a command, S# is driven LOW and the command code is input on DQn, fol-
lowed by input of the address bytes on DQn. The operation is terminated by driving S#
HIGH at any time during data output.
Table 21: READ MEMORY Operations
Operation Name Description/Conditions
READ (03h) The device supports 3-byte addressing (default), with A[23:0] input during
address cycle. After any READ command is executed, the device will out-
put data from the selected address. After the boundary is reached, the
device will start reading again from the beginning.
Each address bit is latched in during the rising edge of the clock. The ad-
dressed byte can be at any location, and the address automatically incre-
ments to the next address after each byte of data is shifted out; there-
fore, a die can be read with a single command.
FAST READ can operate at a higher frequency (fC).
DTR commands function in DTR protocol regardless of settings in the
nonvolatile configuration register or enhanced volatile configuration reg-
ister; other commands function in DTR protocol only after DTR protocol is
enabled by the register settings.
E7h is similar to the QUAD I/O FAST READ command except that the low-
est address bit (A0) must equal 0 and only four dummy clocks are re-
quired prior to the data output. This command is supported in extended-
SPI and quad-SPI protocols, but not in the DTR protocol; it is ignored it in
dual-SPI protocol.
FAST READ (0Bh)
DUAL OUTPUT FAST READ (3Bh)
DUAL INPUT/OUTPUT FAST READ (BBh)
QUAD OUTPUT FAST READ (6Bh)
QUAD INPUT/OUTPUT FAST READ (EBh)
DTR FAST READ (0Dh)
DTR DUAL OUTPUT FAST READ (3Dh)
DTR DUAL INPUT/OUTPUT FAST READ (BDh)
DTR QUAD OUTPUT FAST READ (6Dh)
DTR QUAD INPUT/OUTPUT FAST READ (EDh)
QUAD INPUT/OUTPUT WORD READ (E7h)
READ MEMORY Operations Timings
Figure 19: READ – 03h
Don’t Care
MSB
DQ[0]
LSB
Command
A[MAX]
A[MIN]
7 8 Cx
0
C
Extended
High-Z
DQ1
MSB
DOUT DOUT DOUT DOUT DOUT
LSB
DOUT DOUT DOUT DOUT
Notes: 1. For extended protocol, Cx = 7 + (A[MAX] + 1).
2. S# not shown.
128Mb, 3V Multiple I/O Serial Flash Memory
READ MEMORY Operations
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 46 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Figure 20: FAST READ – 0Bh
7 8 Cx
0
C
MSB
DQ0
LSB
Command
A[MAX]
A[MIN]
3 4 Cx
0
C
MSB
DQ[1:0]
LSB
Command
A[MAX]
A[MIN]
MSB
DOUT DOUT DOUT DOUT DOUT
LSB
Dummy cycles
1 2 Cx
0
C
MSB
DQ[3:0]
LSB
Command
A[MAX]
A[MIN]
MSB
DOUT DOUT DOUT
LSB
Dummy cycles
Extended
MSB
DOUT DOUT DOUT DOUT DOUT
LSB
DOUT DOUT DOUT DOUT
Dummy cycles
Dual
Quad
DQ1 High-Z
Don’t Care
Notes: 1. For extended protocol, Cx = 7 + (A[MAX] + 1); For dual protocol, Cx = 3 + (A[MAX] + 1)/2;
For quad protocol, Cx = 1 + (A[MAX] + 1)/4.
2. S# not shown.
Figure 21: DUAL OUTPUT FAST READ – 3Bh
7 8 Cx
0
C
MSB
DQ0
LSB
Command DOUT
LSB
DQ1 DOUT
A[MAX]
High-Z
A[MIN]
DOUT
MSB
DOUT
DOUT
DOUT
DOUT
DOUT
DOUT
DOUT
Dummy cycles
DQ[1:0]
Dual
Extended
3 4 Cx
0
C
MSB
LSB
Command
A[MAX]
A[MIN]
MSB
DOUT DOUT DOUT DOUT DOUT
LSB
Dummy cycles
Notes: 1. For extended protocol, Cx = 7 + (A[MAX] + 1); For dual protocol, Cx = 3 + (A[MAX] + 1)/2.
2. S# not shown.
128Mb, 3V Multiple I/O Serial Flash Memory
READ MEMORY Operations Timings
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 47 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Figure 22: DUAL INPUT/OUTPUT FAST READ – BBh
7 8 Cx
0
C
MSB
DQ0
LSB
Command DOUT
LSB
DQ1 DOUT
High-Z
A[MIN]
DOUT
MSB
DOUT
DOUT
DOUT
DOUT
DOUT
DOUT
DOUT
A[MAX]
Dummy cycles
3 4 Cx
0
C
MSB
DQ[1:0]
LSB
Command
A[MAX]
A[MIN]
MSB
DOUT DOUT DOUT DOUT DOUT
LSB
Dummy cycles
Dual
Extended
Notes: 1. For extended protocol, Cx = 7 + (A[MAX] + 1)/2; For dual protocol, Cx = 3 + (A[MAX] +
1)/2.
2. S# not shown.
Figure 23: QUAD OUTPUT FAST READ – 6Bh
Dummy cycles
7 8 Cx
0
C
MSB
DQ0
LSB
Command DOUT
LSB
DQ[2:1] DOUT
A[MAX]
High-Z
A[MIN]
DOUT
DOUT
DOUT
DOUT
DQ3 DOUT
‘1’
MSB
DOUT DOUT
1 2 Cx
0
C
MSB
DQ[3:0]
LSB
Command
A[MAX]
A[MIN]
MSB
DOUT DOUT DOUT
LSB
Dummy cycles
Quad
Extended
Notes: 1. For extended protocol, Cx = 7 + (A[MAX] + 1); For quad protocol, Cx = 1 + (A[MAX] +
1)/4.
2. S# not shown.
128Mb, 3V Multiple I/O Serial Flash Memory
READ MEMORY Operations Timings
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 48 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Figure 24: QUAD INPUT/OUTPUT FAST READ – EBh
Dummy cycles
7 8 Cx
0
C
MSB
DQ0
LSB
Command DOUT
LSB
DQ[2:1] DOUT
High-Z
A[MIN]
DOUT
DOUT
DOUT
DOUT
DQ3 DOUT
‘1’
MSB
DOUT DOUT
A[MAX]
1 2 Cx
0
C
MSB
DQ[3:0]
LSB
Command
A[MAX]
A[MIN]
MSB
DOUT DOUT DOUT
LSB
Dummy cycles
Quad
Extended
Notes: 1. For extended protocol, Cx = 7 + (A[MAX] + 1)/4; For quad protocol, Cx = 1 + (A[MAX] +
1)/4.
2. S# not shown.
Figure 25: QUAD INPUT/OUTPUT WORD READ – E7h
Four dummy cycles
7 8 Cx
0
C
MSB
DQ0
Extended
LSB
Command DOUT
LSB
DQ[3:1] DOUT
High-Z
A[MIN]
DOUT
DOUT
DOUT
DOUT
MSB
A[MAX]
1 2 Cx
0
C
MSB
DQ[3:0]
LSB
Command
A[MAX]
A[MIN]
MSB
DOUT DOUT DOUT
LSB
Dummy cycles
Quad
Notes: 1. For extended protocol, Cx = 7 + (A[MAX] + 1)/4; For quad protocol, Cx = 1 + (A[MAX] +
1)/4.
2. S# not shown.
128Mb, 3V Multiple I/O Serial Flash Memory
READ MEMORY Operations Timings
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 49 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Figure 26: DTR FAST READ – 0Dh
7 8 Cx
0
C
MSB
DQ0
LSB
Command
A[MAX]
A[MIN]
3 4 Cx
0
C
MSB
DQ[1:0]
LSB
Command
A[MAX]
A[MIN]
MSB
LSB
Dummy cycles
1 2 Cx
0
C
MSB
DQ[3:0]
LSB
Command
A[MAX]
A[MIN]
MSB
LSB
Dummy cycles
Extended
MSB
LSB
Dummy cycles
Dual
Quad
DQ1 High-Z
Don’t Care
DOUT
DOUT DOUT DOUT DOUT DOUT DOUT DOUT DOUT
DOUT
DOUT DOUT DOUT DOUT DOUT DOUT DOUT
DOUT
DOUT DOUT DOUT
DOUT DOUT DOUT DOUT DOUT DOUT DOUT
Notes: 1. For extended protocol, Cx = 7 + (A[MAX] + 1)/2; For dual protocol, Cx = 3 + (A[MAX] +
1)/4; For quad protocol, Cx = 1 + (A[MAX] + 1)/8.
2. S# not shown.
Figure 27: DTR DUAL OUTPUT FAST READ – 3Dh
7 8 Cx
0
C
DQ0
LSB
DQ1
Extended
A[MAX]
High-Z
A[MIN]
MSB
Dummy cycles
DOUT
DOUT DOUT DOUT DOUT DOUT DOUT DOUT
DOUT
DOUT DOUT DOUT DOUT DOUT DOUT DOUT
MSB
LSB
DOUT
DOUT DOUT DOUT DOUT DOUT DOUT DOUT
3 4 Cx
0
C
MSB
DQ[1:0]
LSB
Command
MSB
LSB
Command
A[MAX]
A[MIN]
Dummy cycles
Dual
Notes: 1. For extended protocol, Cx = 7 + (A[MAX] + 1)/2; For dual protocol, Cx = 3 + (A[MAX] +
1)/4.
2. S# not shown.
128Mb, 3V Multiple I/O Serial Flash Memory
READ MEMORY Operations Timings
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 50 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Figure 28: DTR DUAL INPUT/OUTPUT FAST READ – BDh
C
DQ0
DQ1
7 8 Cx
0
MSB
LSB
Command DOUT
LSB
DOUT
High-Z
A[MIN]
DOUT
MSB
DOUT
DOUT
DOUT
DOUT
DOUT
DOUT
DOUT
DOUT
DOUT
DOUT
DOUT
DOUT
DOUT
A[MAX]
Dummy cycles
Dual
C
DQ[1:0]
3 4 Cx
0
MSB
LSB
Command
A[MAX]
A[MIN]
MSB
LSB
Dummy cycles
DOUT
DOUT DOUT DOUT DOUT DOUT DOUT DOUT
Extended
Notes: 1. For extended protocol, Cx = 7 + (A[MAX] + 1)/4; For dual protocol, Cx = 3 + (A[MAX] +
1)/8.
2. S# not shown.
Figure 29: DTR QUAD OUTPUT FAST READ – 6Dh
C
DQ0
DQ[2:1]
DQ3
Dummy cycles
7 8 Cx
0
MSB
LSB
Command
LSB
A[MAX]
High-Z
A[MIN]
‘1’
MSB
DOUT
DOUT DOUT DOUT
DOUT
DOUT DOUT DOUT
DOUT
DOUT DOUT DOUT
C
DQ[3:0]
Quad
Extended
1 2 Cx
0
MSB
LSB
Command
A[MAX]
A[MIN]
MSB
LSB
Dummy cycles
DOUT
DOUT DOUT DOUT
Notes: 1. For extended protocol, Cx = 7 + (A[MAX] + 1)/2; For quad protocol, Cx = 1 + (A[MAX] +
1)/8.
2. S# not shown.
128Mb, 3V Multiple I/O Serial Flash Memory
READ MEMORY Operations Timings
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 51 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Figure 30: DTR QUAD INPUT/OUTPUT FAST READ – EDh
C
DQ0
DQ[2:1]
Extended
DQ3
Dummy cycles
7 8 Cx
0
MSB
LSB
Command
LSB
High-Z
A[MIN]
‘1’
MSB
A[MAX]
DOUT
DOUT DOUT DOUT
DOUT
DOUT DOUT DOUT
DOUT
DOUT DOUT DOUT
C
DQ[3:0]
Quad 1 2 Cx
0
MSB
LSB
Command
A[MAX]
A[MIN]
MSB
LSB
Dummy cycles
DOUT
DOUT DOUT DOUT
Notes: 1. For extended protocol, Cx = 7 + (A[MAX] + 1)/8; For quad protocol, Cx = 1 + (A[MAX] +
1)/8.
2. S# not shown.
128Mb, 3V Multiple I/O Serial Flash Memory
READ MEMORY Operations Timings
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 52 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
WRITE ENABLE/DISABLE Operations
To initiate a command, S# is driven LOW and held LOW until the eighth bit of the com-
mand code has been latched in, after which it must be driven HIGH. For extended-, du-
al-, and quad-SPI protocols respectively, the command code is input on DQ0, DQ[1:0],
and DQ[3:0]. If S# is not driven HIGH after the command code has been latched in, the
command is not executed, flag status register error bits are not set, and the write enable
latch remains cleared to its default setting of 0, providing protection against errant data
modification.
Table 22: WRITE ENABLE/DISABLE Operations
Operation Name Description/Conditions
WRITE ENABLE (06h) Sets the write enable latch bit before each PROGRAM, ERASE, and WRITE command.
WRITE DISABLE (04h) Clears the write enable latch bit. In case of a protection error, WRITE DISABLE will not clear the
bit. Instead, a CLEAR FLAG STATUS REGISTER command must be issued to clear both flags.
Figure 31: WRITE ENABLE and WRITE DISABLE Timing
DQ0
MSB
LSB
Dual
Don’t Care
Command Bits
DQ0
01 2 4 53 76
C
Extended
High-Z
DQ1
MSB
LSB
0 0 0 0 0 011
Command Bits
S#
S#
0 0 1 0
MSB
1
0
C
LSB
DQ1
DQ2
Quad
Command Bits
S#
0
0
DQ3 0 0
DQ0 0 0
1
1
DQ1 0 0 0 1
1 2
0
C
3
Note: 1. WRITE ENABLE command sequence and code, shown here, is 06h (0000 0110 binary);
WRITE DISABLE is identical, but its command code is 04h (0000 0100 binary).
128Mb, 3V Multiple I/O Serial Flash Memory
WRITE ENABLE/DISABLE Operations
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 53 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
READ REGISTER Operations
To initiate a command, S# is driven LOW. For extended-SPI protocol, input is on DQ0,
output on DQ1. For dual-SPI protocol, input/output is on DQ[1:0] and for quad-SPI
protocol, input/output is on DQ[3:0]. The operation is terminated by driving S# HIGH
at any time during data output.
Table 23: READ REGISTER Operations
Operation Name Description/Conditions
READ STATUS REGISTER (05h) Can be read continuously and at any time, including during a PRO-
GRAM, ERASE, or WRITE operation. If one of these operations is in
progress, checking the write in progress bit or P/E controller bit is rec-
ommended before executing the command.
READ FLAG STATUS REGISTER (70h)
READ NONVOLATILE CONFIGURATION REGISTER
(B5h)
Can be read continuously. After all 16 bits of the register have been
read, a 0 is output. All reserved fields output a value of 1.
Note: The operation will have output data starting from the
least significant byte.
READ VOLATILE CONFIGURATION REGISTER (85h) When the register is read continuously, the same byte is output re-
peatedly.
READ ENHANCED VOLATILE CONFIGURATION
REGISTER (65h)
Figure 32: READ REGISTER Timing
High-Z
DQ1
7 8 910 11 12 13 14 15
0
C
MSB
DQ0
LSB
Command
3 4 5 6 7
0
C
MSB
DQ[1:0]
LSB
Command
MSB
DOUT DOUT DOUT DOUT DOUT
LSB
Extended
MSB
DOUT DOUT DOUT DOUT DOUT
LSB
DOUT DOUT DOUT DOUT
Dual
Quad 1 2 3
0
C
MSB
DQ[3:0]
LSB
Command
MSB
DOUT DOUT DOUT
LSB
Don’t Care
Notes: 1. Supports all READ REGISTER commands except DYNAMIC PROTECTION BITS READ.
2. A READ NONVOLATILE CONFIGURATION REGISTER operation will output data starting
from the least significant byte.
3. S# not shown.
128Mb, 3V Multiple I/O Serial Flash Memory
READ REGISTER Operations
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 54 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
WRITE REGISTER Operations
Before a WRITE REGISTER command is initiated, the WRITE ENABLE command must
be executed to set the write enable latch bit to 1. To initiate a command, S# is driven
LOW and held LOW until the eighth bit of the last data byte has been latched in, after
which it must be driven HIGH; for the WRITE NONVOLATILE CONFIGURATION REG-
ISTER command, S# is held LOW until the 16th bit of the last data byte has been latched
in. For the extended-, dual-, and quad-SPI protocols respectively, input is on DQ0,
DQ[1:0], and DQ[3:0], followed by the data bytes. If S# is not driven HIGH, the com-
mand is not executed, flag status register error bits are not set, and the write enable
latch remains set to 1. The operation is self-timed and its duration is tW for WRITE STA-
TUS REGISTER and tNVCR for WRITE NONVOLATILE CONFIGURATION REGISTER.
Table 24: WRITE REGISTER Operations
Operation Name Description/Conditions
WRITE STATUS REGISTER (01h) The WRITE STATUS REGISTER command writes new values to status reg-
ister bits 7:2, enabling software data protection. The status register can
also be combined with the W# signal to provide hardware data protec-
tion. This command has no effect on status register bits 1:0.
WRITE NONVOLATILE CONFIGURATION REGIS-
TER (B1h)
For the WRITE STATUS REGISTER and WRITE NONVOLATILE CONFIGURA-
TION REGISTER commands, when the operation is in progress, the write
in progress bit is set to 1. The write enable latch bit is cleared to 0,
whether the operation is successful or not. The status register and flag
status register can be polled for the operation status. When the opera-
tion completes, the write in progress bit is cleared to 0, whether the op-
eration is successful or not.
Note: The WRITE NONVOLATILE CONFIGURATION REGISTER opera-
tion must have input data starting from the least significant
byte.
WRITE VOLATILE CONFIGURATION REGISTER
(81h)
Because register bits are volatile, change to the bits is immediate. Re-
served bits are not affected by this command.
WRITE ENHANCED VOLATILE CONFIGURATION
REGISTER (61h)
128Mb, 3V Multiple I/O Serial Flash Memory
WRITE REGISTER Operations
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 55 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Figure 33: WRITE REGISTER Timing
7 8 9 10 11 12 13 14 15
0
C
MSB
DQ0
LSB
Command
3 4 5 6 7
0
C
MSB
DQ[1:0]
LSB
Command
MSB
DIN DIN DIN DIN DIN
LSB
Extended
MSB
LSB
DIN DIN DIN DIN DIN
DIN DIN DIN DIN
Dual
Quad 1 2 3
0
C
MSB
DQ[3:0]
LSB
Command
MSB
DIN DIN DIN
LSB
Notes: 1. Supports all WRITE REGISTER commands except WRITE LOCK REGISTER.
2. Data is two bytes for a WRITE NONVOLATILE CONFIGURATION REGISTER operation, in-
put starting from the least significant byte.
3. S# not shown.
128Mb, 3V Multiple I/O Serial Flash Memory
WRITE REGISTER Operations
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 56 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
CLEAR FLAG STATUS REGISTER Operation
To initiate a command, S# is driven LOW. For the extended-, dual-, and quad-SPI proto-
cols respectively, input is on DQ0, DQ[1:0], and DQ[3:0]. The operation is terminated by
driving S# HIGH at any time.
Table 25: CLEAR FLAG STATUS REGISTER Operation
Operation Name Description/Conditions
CLEAR FLAG STATUS
REGISTER (50h)
Resets the error bits (erase, program, and protection)
Figure 34: CLEAR FLAG STATUS REGISTER Timing
7
0
C
MSB
DQ0
LSB
Command
3
0
C
MSB
DQ[1:0]
LSB
Command
1
0
C
MSB
DQ[3:0]
LSB
Command
Extended
Dual
Quad
Note: 1. S# not shown.
128Mb, 3V Multiple I/O Serial Flash Memory
CLEAR FLAG STATUS REGISTER Operation
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 57 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
PROGRAM Operations
Before a PROGRAM command is initiated, the WRITE ENABLE command must be exe-
cuted to set the write enable latch bit to 1. To initiate a command, S# is driven LOW and
held LOW until the eighth bit of the last data byte has been latched in, after which it
must be driven HIGH. If S# is not driven HIGH, the command is not executed, flag sta-
tus register error bits are not set, and the write enable latch remains set to 1. Each ad-
dress bit is latched in during the rising edge of the clock. When a command is applied to
a protected sector, the command is not executed, the write enable latch bit remains set
to 1, and flag status register bits 1 and 4 are set. If the operation times out, the write ena-
ble latch bit is reset and the program fail bit is set to 1.
Note: The manner of latching data shown and explained in the timing diagrams ensures
that the number of clock pulses is a multiple of one byte before command execution,
helping reduce the effects of noisy or undesirable signals and enhancing device data
protection.
Table 26: PROGRAM Operations
Operation Name Description/Conditions
PAGE PROGRAM (02h) A PROGRAM operation changes a bit from 1 to 0.
When the operation is in progress, the write in progress bit is set to 1.
The write enable latch bit is cleared to 0, whether the operation is suc-
cessful or not. The status register and flag status register can be polled
for the operation status. When the operation completes, the write in
progress bit is cleared to 0. An operation can be paused or resumed by
the PROGRAM/ERASE SUSPEND or PROGRAM/ERASE RESUME command,
respectively.
If the bits of the least significant address, which is the starting address,
are not all zero, all data transmitted beyond the end of the current
page is programmed from the starting address of the same page. If the
number of bytes sent to the device exceed the maximum page size, pre-
viously latched data is discarded and only the last maximum page-size
number of data bytes are guaranteed to be programmed correctly with-
in the same page. If the number of bytes sent to the device is less than
the maximum page size, they are correctly programmed at the specified
addresses without any effect on the other bytes of the same page.
DUAL INPUT FAST PROGRAM (A2h)
EXTENDED DUAL INPUT FAST PROGRAM (D2h)
QUAD INPUT FAST PROGRAM (32h)
EXTENDED QUAD INPUT FAST PROGRAM (38h)
128Mb, 3V Multiple I/O Serial Flash Memory
PROGRAM Operations
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 58 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
PROGRAM Operations Timings
Figure 35: PAGE PROGRAM Command
7 8 Cx
0
C
MSB
DQ0
LSB
Command
A[MAX]
A[MIN]
MSB
DIN DIN DIN DIN DIN
LSB
DIN DIN DIN DIN
3 4 Cx
0
C
MSB
DQ[1:0]
LSB
Command
A[MAX]
A[MIN]
MSB
DIN DIN DIN DIN DIN
LSB
1 2 Cx
0
C
MSB
DQ[3:0]
LSB
Command
A[MAX]
A[MIN]
MSB
DIN DIN DIN
LSB
Extended
Dual
Quad
Notes: 1. For extended-SPI protocol, Cx = 7 + (A[MAX] + 1); For dual-SPI protocol,
Cx = 3 + (A[MAX] + 1)/2; For quad-SPI protocol, Cx = 1 + (A[MAX] + 1)/4.
2. S# not shown. The operation is self-timed, and its duration is tPP.
128Mb, 3V Multiple I/O Serial Flash Memory
PROGRAM Operations Timings
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 59 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Figure 36: DUAL INPUT FAST PROGRAM Command
Extended
Dual 3 4 Cx
0
C
MSB
DQ[1:0]
LSB
Command DIN
LSB
A[MAX]
A[MIN]
MSB
DIN DIN DIN DIN
7 8 Cx
0
C
MSB
DQ0
LSB
Command DIN
LSB
DQ1 DIN
A[MAX]
High-Z
A[MIN]
DIN
MSB
DIN
DIN
DIN
DIN
DIN
DIN
DIN
Notes: 1. For extended-SPI protocol, Cx = 7 + (A[MAX] + 1); For dual-SPI protocol,
Cx = 3 + (A[MAX] + 1)/2.
2. S# not shown.
Figure 37: EXTENDED DUAL INPUT FAST PROGRAM Command
Extended
Dual 3 4 Cx
0
C
MSB
DQ[1:0]
LSB
Command DIN
LSB
A[MAX]
A[MIN]
MSB
DIN DIN DIN DIN
7 8 Cx
0
C
MSB
DQ0
LSB
Command DIN
LSB
DQ1 DIN
High-Z
A[MIN]
A[MAX]
DIN
MSB
DIN
DIN
DIN
DIN
DIN
DIN
DIN
Notes: 1. For extended-SPI protocol, Cx = 7 + (A[MAX] + 1)/2; For dual-SPI protocol,
Cx = 3 + (A[MAX] + 1)/2.
2. S# not shown.
128Mb, 3V Multiple I/O Serial Flash Memory
PROGRAM Operations Timings
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 60 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Figure 38: QUAD INPUT FAST PROGRAM Command
7 8 Cx
0
C
MSB
DQ0
LSB
Command DIN
LSB
DQ[3:1] DIN
A[MAX]
High-Z
A[MIN]
DIN
MSB
DIN
DIN
DIN
Extended
Quad 1 2 Cx
0
C
MSB
DQ[3:0]
LSB
Command DIN
LSB
A[MAX]
A[MIN]
MSB
DIN DIN
Notes: 1. For extended-SPI protocol, Cx = 7 + (A[MAX] + 1); For quad-SPI protocol,
Cx = 1 + (A[MAX] + 1)/4.
2. S# not shown.
Figure 39: EXTENDED QUAD INPUT FAST PROGRAM Command
7 8 Cx
0
C
MSB
DQ0
LSB
Command DIN
LSB
DQ[2:1] DIN
High-Z
A[MIN]
A[MAX]
DIN
DIN
DIN
DIN
DQ3 DIN
‘1’
MSB
DIN DIN
Extended
Quad 1 2 Cx
0
C
MSB
DQ[3:0]
LSB
Command DIN
LSB
A[MAX]
A[MIN]
MSB
DIN DIN
Notes: 1. For extended-SPI protocol, Cx = 7 + (A[MAX] + 1)/4; For quad-SPI protocol,
Cx = 1 + (A[MAX] + 1)/4.
2. S# not shown.
128Mb, 3V Multiple I/O Serial Flash Memory
PROGRAM Operations Timings
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 61 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
ERASE Operations
An ERASE operation changes a bit from 0 to 1. Before any ERASE command is initiated,
the WRITE ENABLE command must be executed to set the write enable latch bit to 1; if
not, the device ignores the command and no error bits are set to indicate operation fail-
ure. S# is driven LOW and held LOW until the eighth bit of the last data byte has been
latched in, after which it must be driven HIGH. The operations are self-timed, and dura-
tion is tSSE, tSE, or tBE according to command.
If S# is not driven HIGH, the command is not executed, flag status register error bits are
not set, and the write enable latch remains set to 1. A command applied to a protected
subsector is not executed. Instead, the write enable latch bit remains set to 1, and flag
status register bits 1 and 5 are set.
When the operation is in progress, the program or erase controller bit of the flag status
register is set to 0. In addition, the write in progress bit is set to 1. When the operation
completes, the write in progress bit is cleared to 0. The write enable latch bit is cleared
to 0, whether the operation is successful or not. If the operation times out, the write en-
able latch bit is reset and the erase error bit is set to 1.
The status register and flag status register can be polled for the operation status. When
the operation completes, these register bits are cleared to 1.
Note: For all ERASE operations, noisy or undesirable signal effects can be reduced and
device data protection enhanced by holding S# LOW until the eighth bit of the last data
byte has been latched in; this ensures that the number of clock pulses is a multiple of
one byte before command execution.
Table 27: ERASE Operations
Operation Name Description/Conditions
SUBSECTOR ERASE (52h/20h) Sets the selected subsector or sector bits to FFh. Any address within the subsector is valid
for entry. Each address bit is latched in during the rising edge of the clock. The operation
can be suspended and resumed by the PROGRAM/ERASE SUSPEND and PROGRAM/ERASE
RESUME commands, respectively.
SECTOR ERASE (D8h)
BULK ERASE (C7h/60h) Sets the device bits to FFh.
The command is not executed if any sector is locked. Instead, the write enable latch bit
remains set to 1, and flag status register bits 1 and 5 are set.
128Mb, 3V Multiple I/O Serial Flash Memory
ERASE Operations
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 62 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Figure 40: SUBSECTOR and SECTOR ERASE Timing
7 8 Cx
0
C
MSB
DQ0
LSB
Command
A[MAX]
A[MIN]
3 4 Cx
0
C
MSB
DQ0[1:0]
LSB
Command
A[MAX]
A[MIN]
1 2 Cx
0
C
MSB
DQ0[3:0]
LSB
Command
A[MAX]
A[MIN]
Extended
Dual
Quad
Notes: 1. For extended-SPI protocol, Cx = 7 + (A[MAX] + 1); For dual-SPI protocol, Cx = 3 + (A[MAX]
+ 1)/2; For quad-SPI protocol, Cx = 1 + (A[MAX] + 1)/4.
2. S# not shown.
Figure 41: BULK ERASE Timing
7
0
C
MSB
DQ0
LSB
Command
3
0
C
MSB
DQ[1:0]
LSB
Command
1
0
C
MSB
DQ[3:0]
LSB
Command
Extended
Dual
Quad
Note: 1. S# not shown.
128Mb, 3V Multiple I/O Serial Flash Memory
ERASE Operations
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 63 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
SUSPEND/RESUME Operations
PROGRAM/ERASE SUSPEND Operations
A PROGRAM/ERASE SUSPEND command enables the memory controller to interrupt
and suspend an array PROGRAM or ERASE operation within the program/erase latency.
To initiate the command, S# is driven LOW, and the command code is input on DQn.
The operation is terminated by the PROGRAM/ERASE RESUME command.
For a PROGRAM SUSPEND, the flag status register bit 2 is set to 1. For an ERASE SUS-
PEND, the flag status register bit 6 is set to 1.
After an erase/program latency time, the flag status register bit 7 is also set to 1, but the
device is considered in suspended state once bit 7 of the flag status register outputs 1
with at least one byte output. In the suspended state, the device is waiting for any oper-
ation.
If the time remaining to complete the operation is less than the suspend latency, the de-
vice completes the operation and clears the flag status register bits 2 or 6, as applicable.
Because the suspend state is volatile, if there is a power cycle, the suspend state infor-
mation is lost and the flag status register powers up as 80h.
It is possible to nest a PROGRAM/ERASE SUSPEND operation inside a PROGRAM/
ERASE SUSPEND operation just once. Issue an ERASE command and suspend it. Then
issue a PROGRAM command and suspend it also. With the two operations suspended,
the next PROGRAM/ERASE RESUME command resumes the latter operation, and a sec-
ond PROGRAM/ERASE RESUME command resumes the former (or first) operation.
PROGRAM/ERASE RESUME Operations
A PROGRAM/ERASE RESUME operation terminates the PROGRAM/ERASE RESUME
command. To initiate the command, S# is driven LOW, and the command code is input
on DQn. The operation is terminated by driving S# HIGH.
Table 28: SUSPEND/RESUME Operations
Operation Name Description/Conditions
PROGRAM SUSPEND (75h) A READ operation is possible in any page except the one in a suspended state. Reading
from a sector that is in a suspended state will output indeterminate data.
ERASE SUSPEND (75h) A PROGRAM or READ operation is possible in any sector except the one in a suspended
state. Reading from a sector that is in a suspended state will output indeterminate data.
During a SUSPEND SUBSECTOR ERASE operation, reading an address in the sector that
contains the suspended subsector could output indeterminate data.
The device ignores a PROGRAM command to a sector that is in an erase suspend state; it
also sets the flag status register bit 4 to 1 (program failure/protection error) and leaves
the write enable latch bit unchanged.
When the ERASE resumes, it does not check the new lock status of the WRITE VOLATILE
LOCK BITS command.
128Mb, 3V Multiple I/O Serial Flash Memory
SUSPEND/RESUME Operations
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 64 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Table 28: SUSPEND/RESUME Operations (Continued)
Operation Name Description/Conditions
PROGRAM RESUME (7Ah) The status register write in progress bit is set to 1 and the flag status register program
erase controller bit is set to 0. The command is ignored if the device is not in a suspen-
ded state.
When the operation is in progress, the program or erase controller bit of the flag status
register is set to 0. The flag status register can be polled for the operation status. When
the operation completes, that bit is cleared to 1.
ERASE RESUME (7Ah)
Note: 1. See the Operations Allowed/Disallowed During Device States table.
Figure 42: PROGRAM/ERASE SUSPEND and RESUME Timing
7
0
C
MSB
DQ0
LSB
Command
3
0
C
MSB
DQ[1:0]
LSB
Command
1
0
C
MSB
DQ[3:0]
LSB
Command
Extended
Dual
Quad
Note: 1. S# not shown.
128Mb, 3V Multiple I/O Serial Flash Memory
SUSPEND/RESUME Operations
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 65 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
ONE-TIME PROGRAMMABLE Operations
READ OTP ARRAY Command
To initiate a READ OTP ARRAY command, S# is driven LOW. The command code is in-
put on DQ0, followed by address bytes and dummy clock cycles. Each address bit is
latched in during the rising edge of C. Data is shifted out on DQ1, beginning from the
specified address and at a maximum frequency of fC (MAX) on the falling edge of the
clock. The address increments automatically to the next address after each byte of data
is shifted out. There is no rollover mechanism; therefore, if read continuously, after lo-
cation 0x40, the device continues to output data at location 0x40. The operation is ter-
minated by driving S# HIGH at any time during data output.
Figure 43: READ OTP ARRAY Command Timing
7 8 Cx
0
C
MSB
DQ0
LSB
Command
A[MAX]
A[MIN]
3 4 Cx
0
C
MSB
DQ[1:0]
LSB
Command
A[MAX]
A[MIN]
MSB
DOUT DOUT DOUT DOUT DOUT
LSB
Dummy cycles
1 2 Cx
0
C
MSB
DQ[3:0]
LSB
Command
A[MAX]
A[MIN]
MSB
DOUT DOUT DOUT
LSB
Dummy cycles
Extended
MSB
DOUT DOUT DOUT DOUT DOUT
LSB
DOUT DOUT DOUT DOUT
Dummy cycles
Dual
Quad
DQ1 High-Z
Don’t Care
Note: 1. For extended-SPI protocol, Cx = 7 + (A[MAX] + 1); For dual-SPI protocol, Cx = 3 + (A[MAX]
+ 1)/2; For quad-SPI protocol, Cx = 1 + (A[MAX] + 1)/4.
PROGRAM OTP ARRAY Command
To initiate the PROGRAM OTP ARRAY command, the WRITE ENABLE command must
be issued to set the write enable latch bit to 1; otherwise, the PROGRAM OTP ARRAY
command is ignored and flag status register bits are not set. S# is driven LOW and held
LOW until the eighth bit of the last data byte has been latched in, after which it must be
driven HIGH. The command code is input on DQ0, followed by address bytes and at
least one data byte. Each address bit is latched in during the rising edge of the clock.
When S# is driven HIGH, the operation, which is self-timed, is initiated; its duration is
tPOTP. There is no rollover mechanism; therefore, after a maximum of 65 bytes are
latched in the subsequent bytes are discarded.
PROGRAM OTP ARRAY programs, at most, 64 bytes to the OTP memory area and one
OTP control byte. When the operation is in progress, the write in progress bit is set to 1.
128Mb, 3V Multiple I/O Serial Flash Memory
ONE-TIME PROGRAMMABLE Operations
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 66 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
The write enable latch bit is cleared to 0, whether the operation is successful or not, and
the status register and flag status register can be polled for the operation status. When
the operation completes, the write in progress bit is cleared to 0.
If the operation times out, the write enable latch bit is reset and the program fail bit is
set to 1. If S# is not driven HIGH, the command is not executed, flag status register error
bits are not set, and the write enable latch remains set to 1. The operation is considered
complete once bit 7 of the flag status register outputs 1 with at least one byte output.
The OTP control byte (byte 64) is used to permanently lock the OTP memory array.
Table 29: OTP Control Byte (Byte 64)
Bit Name Settings Description
0 OTP control byte 0 = Locked
1 = Unlocked (default)
Used to permanently lock the 64-byte OTP array. When bit 0 = 1,
the 64-byte OTP array can be programmed. When bit 0 = 0, the
64-byte OTP array is read only.
Once bit 0 has been programmed to 0, it can no longer be
changed to 1. Program OTP array is ignored, the write enable
latch bit remains set, and flag status register bits 1 and 4 are set.
Figure 44: PROGRAM OTP Command Timing
7 8 Cx
0
C
MSB
DQ0
LSB
Command
A[MAX]
A[MIN]
MSB
DIN DIN DIN DIN DIN
LSB
DIN DIN DIN DIN
3 4 Cx
0
C
MSB
DQ[1:0]
LSB
Command
A[MAX]
A[MIN]
MSB
DIN DIN DIN DIN DIN
LSB
1 2 Cx
0
C
MSB
DQ[3:0]
LSB
Command
A[MAX]
A[MIN]
MSB
DIN DIN DIN
LSB
Extended
Dual
Quad
Note: 1. For extended-SPI protocol, Cx = 7 + (A[MAX] + 1); For dual-SPI protocol, Cx = 3 + (A[MAX]
+ 1)/2; For quad-SPI protocol, Cx = 1 + (A[MAX] + 1)/4.
DEEP POWER-DOWN Operations
ENTER DEEP POWER-DOWN Command
To execute ENTER DEEP POWER-DOWN, S# must be driven HIGH after the eighth bit
of the command code is latched in, after which, tDP time must elapse before the supply
128Mb, 3V Multiple I/O Serial Flash Memory
DEEP POWER-DOWN Operations
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 67 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
current is reduced to ICC2.. Any attempt to execute ENTER DEEP POWER-DOWN during
a WRITE operation is rejected without affecting the operation.
In deep power-down mode, no device error bits are set, the WEL state is unchanged,
and the device ignores all commands except RELEASE FROM DEEP POWER-DOWN,
RESET ENABLE, RESET, hardware reset, and power-loss rescue sequence commands.
RELEASE FROM DEEP POWER-DOWN Command
To execute the RELEASE FROM DEEP POWER-DOWN command, S# is driven LOW, fol-
lowed by the command code. Sending additional clock cycles on C while S# is driven
LOW voids the command.
RELEASE FROM DEEP POWER-DOWN is terminated by driving S# HIGH. The device
enters standby mode after S# is driven HIGH followed by a delay of tRDP. S# must re-
main HIGH during this time.
Table 30: DEEP POWER-DOWN Operations
Operation Name Description/Conditions
ENTER DEEP
POWER-DOWN (B9h)
The command is used to place the device in deep power-down mode for the lowest device
power consumption, with device current reduced to ICC2. This command can also be used as
a software protection mechanism while the device is not in active use.
RELEASE FROM
DEEP POWER-DOWN (ABh)
The command is used to exit from deep power-down mode. The device also exits deep
power-down mode upon:
A power-down, entering standby mode with the next power-up.
A hardware or software reset operation, entering standby mode with a recovery time as
specified in the AC Reset Specifications.
128Mb, 3V Multiple I/O Serial Flash Memory
DEEP POWER-DOWN Operations
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 68 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
DEEP POWER-DOWN Timings
Figure 45: ENTER DEEP POWER-DOWN Timing
Extended
tDP
MSB
LSB
Command
DQ0
C
S#
7
0
Deep
Power-Down
Mode
Standby
Mode
Quad
MSB
LSB
Command
DQ0[3:0]
C
S#
Deep
Power-Down
Mode
Standby
Mode
Dual
MSB
LSB
Command
DQ0[1:0]
S#
Deep
Power-Down
Mode
Standby
Mode
C
3
0
1
0
tDP
tDP
128Mb, 3V Multiple I/O Serial Flash Memory
DEEP POWER-DOWN Operations
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 69 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Figure 46: RELEASE FROM DEEP POWER-DOWN Timing
Extended
MSB
LSB
Command
DQ0
C
S#
7
0
Deep
Power-Down
Mode
Standby
Mode
Quad
MSB
LSB
Command
DQ[3:0]
C
S#
Dual
MSB
LSB
Command
DQ[1:0]
S#
C
3
0
1
0
Deep
Power-Down
Mode
Standby
Mode
Deep
Power-Down
Mode
Standby
Mode
tRDP
tRDP
tRDP
QUAD PROTOCOL Operations
ENTER or RESET QUAD INPUT/OUTPUT MODE Command
To initiate these commands, the WRITE ENABLE command must not be executed. S#
must be driven LOW, and the command must be input on DQn.
128Mb, 3V Multiple I/O Serial Flash Memory
QUAD PROTOCOL Operations
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 70 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Table 31: ENTER and RESET QUAD PROTOCOL Operations
Operation Name Description/Conditions
ENTER QUAD INPUT/OUTPUT MODE (35h) The effect of the command is immediate.
RESET QUAD INPUT/OUTPUT MODE (F5h)
128Mb, 3V Multiple I/O Serial Flash Memory
QUAD PROTOCOL Operations
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 71 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
CYCLIC REDUNDANCY CHECK Operations
A CYCLIC REDUNDANCY CHECK (CRC) operation is a hash function designed to de-
tect accidental changes to raw data and is used commonly in digital networks and stor-
age devices such as hard disk drives. A CRC-enabled device calculates a short, fixed-
length binary sequence, known as the CRC code or just CRC, for each block of data. CRC
can be a higher performance alternative to reading data directly in order to verify re-
cently programmed data. Or, it can be used to check periodically the data integrity of a
large block of data against a stored CRC reference over the life of the product. CRC helps
improve test efficiency for programmer or burn-in stress tests. No system hardware
changes are required to enable CRC.
The CRC-64 operation follows the ECMA standard. The generating polynomial is:
G(x) = x64 + x62 + x57 + x55 + x54 + x53 + x52 + x47 + x46 + x45 + x40 + x39 + x38 + x37 + x35 + x33
+ x32 + x31 + x29 + x27 + x24 + x23 + x22 + x21 + x19 + x17 + x13 + x12 + x10 + x9 + x7 + x4 + x + 1
Note: The data stream sequence is from LSB to MSB and the default initial CRC value is
all zero.
The device CRC operation generates the CRC result of the entire device or of an address
range specified by the operation. Then the CRC result is compared with the expected
CRC data provided in the sequence. Finally the device indicates a pass or fail through
the bit #4 of FLAG STATUS REGISTER. If the CRC fails, it is possible to take corrective
action such as verifying with a normal read mode or by rewriting the array data.
CRC operation supports CRC data read back when CRC check fails; the CRC data gener-
ated from the target address range or entire device will be stored in a dedicated register:
general purpose read register (GPRR) only when CRC check fails, and it can be read out
through the GPRR read sequence with command 96h, least significant byte first. GPRR
is reset to default all 0 at the beginning of the CRC operation, and so customer will read
all 0 if CRC operation pass.
Note that the GPRR is a volatile register. It is cleared to all 0s on power-up and hard-
ware/software reset. Read GPRR starts from the first location, when clocked continu-
ously, will output 00h after location 64.
The CYCLIC REDUNDANCY CHECK operation command sequences are shown in the
tables below, for an entire die or for a selected range.
Table 32: CRC Command Sequence on Entire Device
Command Sequence
DescriptionByte# Data
1 9Bh Command code for interface activation
2 27h Sub-command code for CRC operation
3 FFh CRC operation option selection (CRC operation on entire device)
4 CRC[7:0] 1st byte of expected CRC value
5–10 CRC[55:8] 2nd to 7th byte of expected CRC value
11 CRC[63:56] 8th byte of expected CRC value
Drive S# HIGH Operation sequence confirmed; CRC operation starts
128Mb, 3V Multiple I/O Serial Flash Memory
CYCLIC REDUNDANCY CHECK Operations
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 72 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Table 33: CRC Command Sequence on a Range
Command Sequence
DescriptionByte# Data
1 9Bh Command code for interface activation
2 27h Sub-command code for CRC operation
3 FEh CRC operation option selection (CRC operation on a range)
4 CRC[7:0] 1st byte of expected CRC value
5–10 CRC[55:8] 2nd to 7th byte of expected CRC value
11 CRC[63:56] 8th byte of expected CRC value
12 Start Address [7:0] Specifies the starting byte address for CRC operation
13–14 Start Address [23:8]
15 Start Address [31:24]
16 Stop Address [7:0] Specifies the ending byte address for CRC operation
17–18 Stop Address [23:8]
19 Stop Address [31:24]
Drive S# HIGH Operation sequence confirmed; CRC operation starts
128Mb, 3V Multiple I/O Serial Flash Memory
CYCLIC REDUNDANCY CHECK Operations
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 73 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
State Table
The device can be in only one state at a time. Depending on the state of the device,
some operations as shown in the table below are allowed (Yes) and others are not (No).
For example, when the device is in the standby state, all operations except SUSPEND
are allowed in any sector. For all device states except the erase suspend state, if an oper-
ation is allowed or disallowed in one sector, it is allowed or disallowed in all other sec-
tors. In the erase suspend state, a PROGRAM operation is allowed in any sector except
the one in which an ERASE operation has been suspended.
Table 34: Operations Allowed/Disallowed During Device States
Operation
Standby
State
Program or
Erase State
Subsector Erase Suspend or
Program Suspend State
Erase Suspend
State Notes
READ (memory) Yes No Yes Yes 1
READ
(status/flag status
registers)
Yes Yes Yes Yes 6
PROGRAM Yes No No Yes/No 2
ERASE
(sector/subsector)
Yes No No No 3
WRITE Yes No No No 4
WRITE Yes No Yes Yes 5
SUSPEND No Yes No No 7
Notes: 1. All READ operations except READ STATUS REGISTER and READ FLAG REGISTER. When is-
sued to a sector or subsector that is simultaneously in an erase suspend state, the READ
operation is accepted, but the data output is not guaranteed until the erase has comple-
ted.
2. All PROGRAM operations except PROGRAM OTP. In the erase suspend state, a PROGRAM
operation is allowed in any sector (Yes) except the sector (No) in which an ERASE opera-
tion has been suspended.
3. Applies to the SECTOR ERASE or SUBSECTOR ERASE operation.
4. Applies to the following operations: WRITE STATUS REGISTER, WRITE NONVOLATILE
CONFIGURATION REGISTER, PROGRAM OTP, and BULK ERASE.
5. Applies to the WRITE VOLATILE CONFIGURATION REGISTER, WRITE ENHANCED VOLA-
TILE CONFIGURATION REGISTER, WRITE ENABLE, WRITE DISABLE, CLEAR FLAG STATUS
REGISTER, or WRITE LOCK REGISTER operation.
6. Applies to the READ STATUS REGISTER or READ FLAG STATUS REGISTER operation.
7. Applies to the PROGRAM SUSPEND or ERASE SUSPEND operation.
128Mb, 3V Multiple I/O Serial Flash Memory
State Table
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 74 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
XIP Mode
Execute-in-place (XIP) mode allows the memory to be read by sending an address to the
device and then receiving the data on one, two, or four pins in parallel, depending on
the customer requirements. XIP mode offers maximum flexibility to the application,
saves instruction overhead, and reduces random access time.
Activate and Terminate XIP Using Volatile Configuration Register
Applications that boot in SPI and must switch to XIP use the volatile configuration reg-
ister. XIP provides faster memory READ operations by requiring only an address to exe-
cute, rather than a command code and an address.
To activate XIP requires two steps. First, enable XIP by setting volatile configuration reg-
ister bit 3 to 0. Next, drive the XIP confirmation bit to 0 during the next FAST READ op-
eration. XIP is then active. Once in XIP, any command that occurs after S# is toggled re-
quires only address bits to execute; a command code is not necessary, and device oper-
ations use the SPI protocol that is enabled. XIP is terminated by driving the XIP confir-
mation bit to 1. The device automatically resets volatile configuration register bit 3 to 1.
Activate and Terminate XIP Using Nonvolatile Configuration Register
Applications that must boot directly in XIP use the nonvolatile configuration register. To
enable a device to power-up in XIP using this register, set nonvolatile configuration reg-
ister bits [11:9]. Settings vary according to protocol, as explained in the Nonvolatile
Configuration Register section. Because the device boots directly in XIP, after the power
cycle, no command code is necessary. XIP is terminated by driving the XIP confirmation
bit to 1.
Figure 47: XIP Mode Directly After Power-On
C
VCC
S#
DQ0
DQ[3:1]
DOUT
Xb DOUT DOUT DOUT DOUT
DOUT DOUT DOUT DOUT DOUT
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
tVSI (<100µ)
NVCR check:
XIP enabled
Dummy cycles
Mode 3
Mode 0
A[MAX] MSB
A[MIN] LSB
Note: 1. Xb is the XIP confirmation bit and should be set as follows: 0 to keep XIP state; 1 to exit
XIP mode and return to standard read mode.
128Mb, 3V Multiple I/O Serial Flash Memory
XIP Mode
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 75 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Confirmation Bit Settings Required to Activate or Terminate XIP
The XIP confirmation bit setting activates or terminates XIP after it has been enabled or
disabled. This bit is the value on DQ0 during the first dummy clock cycle in the FAST
READ operation. In dual I/O XIP mode, the value of DQ1 during the first dummy clock
cycle after the addresses is always "Don't Care." In quad I/O XIP mode, the values of
DQ3, DQ2, and DQ1 during the first dummy clock cycle after the addresses are always
"Don't Care."
Table 35: XIP Confirmation Bit
Bit Value Description
0 Activates XIP: While this bit is 0, XIP remains activated.
1 Terminates XIP: When this bit is set to 1, XIP is terminated and the device returns to SPI.
Table 36: Effects of Running XIP in Different Protocols
Protocol Effect
Extended I/O
and Dual I/O
In a device with a dedicated part number where RESET# is enabled, a LOW pulse on that pin re-
sets XIP and the device to the state it was in previous to the last power-up, as defined by the
nonvolatile configuration register.
Dual I/O Values of DQ1 during the first dummy clock cycle are "Don't Care."
Quad I/O1Values of DQ[3:1] during the first dummy clock cycle are "Don't Care." In a device with a dedica-
ted part number, it is only possible to reset memory when the device is deselected.
Note: 1. In a device with a dedicated part number where RESET# is enabled, a LOW pulse on that
pin resets XIP and the device to the state it was in previous to the last power-up, as de-
fined by the nonvolatile configuration register only when the device is deselected.
Terminating XIP After a Controller and Memory Reset
The system controller and the device can become out of synchronization if, during the
life of the application, the system controller is reset without the device being reset. In
such a case, the controller can reset the memory to power-on reset if the memory has
reset functionality. (Reset is available in devices with a dedicated part number.)
• 7 clock cycles within S# LOW (S# becomes HIGH before 8th clock cycle)
• + 9 clock cycles within S# LOW (S# becomes HIGH before 10th clock cycle)
• + 13 clock cycles within S# LOW (S# becomes HIGH before 14th clock cycle)
• + 17 clock cycles within S# LOW (S# becomes HIGH before 18th clock cycle)
• + 25 clock cycles within S# LOW (S# becomes HIGH before 26th clock cycle)
• + 33 clock cycles within S# LOW (S# becomes HIGH before 34th clock cycle)
These sequences cause the controller to set the XIP confirmation bit to 1, thereby termi-
nating XIP. However, it does not reset the device or interrupt PROGRAM/ERASE opera-
tions that may be in progress. After terminating XIP, the controller must execute RESET
ENABLE and RESET MEMORY to implement a software reset and reset the device.
128Mb, 3V Multiple I/O Serial Flash Memory
XIP Mode
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 76 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Power-Up and Power-Down
Power-Up and Power-Down Requirements
At power-up and power-down, the device must not be selected; that is, S# must follow
the voltage applied on VCC until VCC reaches the correct values: VCC,min at power-up and
VSS at power-down.
To provide device protection and prevent data corruption and inadvertent WRITE oper-
ations during power-up, a power-on reset circuit is included. The logic inside the device
is held to RESET while VCC is less than the power-on reset threshold voltage shown here;
all operations are disabled, and the device does not respond to any instruction. During
a standard power-up phase, the device ignores all commands except READ STATUS
REGISTER and READ FLAG STATUS REGISTER. These operations can be used to check
the memory internal state. After power-up, the device is in standby power mode; the
write enable latch bit is reset; the write in progress bit is reset; and the dynamic protec-
tion register is configured as: (write lock bit, lock down bit) = (0,0).
Normal precautions must be taken for supply line decoupling to stabilize the VCC sup-
ply. Each device in a system should have the VCC line decoupled by a suitable capacitor
(typically 100nF) close to the package pins. At power-down, when VCC drops from the
operating voltage to below the power-on-reset threshold voltage shown here, all opera-
tions are disabled and the device does not respond to any command.
When the operation is in progress, the program or erase controller bit of the status reg-
ister is set to 0. To obtain the operation status, the flag status register must be polled.
When the operation completes, the program or erase controller bit is cleared to 1. The
cycle is complete after the flag status register outputs the program or erase controller bit
to 1.
Note: If power-down occurs while a WRITE, PROGRAM, or ERASE cycle is in progress,
data corruption may result.
Note: For additional details about how to properly apply and remove the power supply
to the device, refer to TN-25-38: Power-Up, Power-Down, and Brownout Considerations
on MT25Q, MT25T, and MT35X NOR Flash Memory.
128Mb, 3V Multiple I/O Serial Flash Memory
Power-Up and Power-Down
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 77 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Figure 48: Power-Up Timing
V
CC
V
CC,min
V
WI
Chip
reset
Chip selection not allowed
Polling allowed
t
VSL
Time
Device fully accessible
V
CC,max
Extended-SPI protocol
Flag status register bit 7 = 0
Status register bit 0 = 1
Notes: 1. tVSL polling has to be in extended-SPI protocol and STR mode.
2. During tVSL period, HOLD# is enabled, RESET# disabled, and output strength is in de-
fault setting.
3. In a system that uses a fast VCC ramp rate, current design requires a minimum 100µs af-
ter VCC reaches tVWI, and before the polling is allowed, even though VCC,min is achieved.
4. In extended-SPI protocol, 1Gb and 2Gb device must wait 100µs after VCC reaches VCC,min
before polling the status register or flag status register.
Table 37: Power-Up Timing and VWI Threshold
Note 1 applies to entire table
Symbol Parameter Min Max Unit Notes
tVSL VCC,min to device fully accessible 300 µs 2, 3
VWI Write inhibit voltage 1.5 2.5 V 2
Notes: 1. When VCC reaches VCC,min, to determine whether power-up initialization is complete,
the host can poll status register bit 0 or flag status register bit 7 only in extended-SPI
protocol because the device will accept commands only on DQ0 and output data only
on DQ1. When the device is ready, the host has full access using the protocol configured
in the nonvolatile configuration register. If the host cannot poll the status register in x1
SPI mode, it is recommended to wait tVSL before accessing the device.
2. Parameters listed are characterized only.
3. On the first power-up after an event causing a subsector erase operation interrupt (for
example, due to power-loss), the maximum time for tVSL will be up to 4.5ms in case of
4KB subsector erase interrupt and up to 36ms in case of 32KB subsector erase interrupt;
this accounts for erase recovery embedded operation.
128Mb, 3V Multiple I/O Serial Flash Memory
Power-Up and Power-Down
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 78 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Active, Standby, and Deep Power-Down Modes
When S# is LOW, the device is selected and in active power mode. When S# is HIGH, the
device is deselected but could remain in active power mode until ongoing internal op-
erations are completed. Then the device goes into standby power mode and device cur-
rent consumption drops to ICC1.
Deep power-down mode enbles users to place the device in the lowest power consump-
tion mode, ICC2. The ENTER DEEP POWER-DOWN command is used to put the device
in deep power-down mode, and the RELEASE FROM DEEP POWER-DOWN command
is used to bring the device out of deep power-down mode. Command details are in the
Command Set table and the DEEP POWER-DOWN Operations section of this data
sheet.
Power Loss and Interface Rescue
If a power loss occurs during a WRITE NONVOLATILE CONFIGURATION REGISTER
command, after the next power-on, the device might begin in an undetermined state
(XIP mode or an unnecessary protocol). If this occurs, a power loss recovery sequence
must reset the device to a fixed state (extended-SPI protocol without XIP) until the next
power-up.
If the controller and memory device get out of synchronization, the controller can fol-
low an interface rescue sequence to reset the memory device interface to power-up to
the last reset state (as defined by latest nonvolatile configuration register). This resets
only the interface, not the entire memory device, and any ongoing operations are not
interrupted.
After each sequence, the issue should be resolved definitively by running the WRITE
NONVOLATILE CONFIGURATION REGISTER command again.
Note: The two steps in each sequence must be in the correct order, and tSHSL2 must be
at least 50ns for the duration of each sequence.
The first step for both the power loss recovery and interface rescue sequences is descri-
bed under "Recovery." The second step in the power loss recovery sequence is under
"Power Loss Recovery" and the second step in the interface rescue sequence is under
"Interface Rescue."
Recovery
Step one of both the power loss recovery and interface rescue sequences is DQ0 (PAD
DATA) and DQ3 (PAD HOLD) equal to 1 for the situations listed here:
7 clock cycles within S# LOW (S# becomes HIGH before 8th clock cycle)
+ 9 clock cycles within S# LOW (S# becomes HIGH before 10th clock cycle)
+ 13 clock cycles within S# LOW (S# becomes HIGH before 14th clock cycle)
+ 17 clock cycles within S# LOW (S# becomes HIGH before 18th clock cycle)
+ 25 clock cycles within S# LOW (S# becomes HIGH before 26th clock cycle)
+ 33 clock cycles within S# LOW (S# becomes HIGH before 34th clock cycle)
128Mb, 3V Multiple I/O Serial Flash Memory
Active, Standby, and Deep Power-Down Modes
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 79 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Power Loss Recovery
For power loss recovery, the second part of the sequence is exiting from dual- or quad-
SPI protocol by using the following FFh sequence: DQ0 and DQ3 equal to 1 for 8 clock
cycles within S# LOW; S# becomes HIGH before 9th clock cycle. After this two-part se-
quence the extended-SPI protocol is active.
Interface Rescue
For interface rescue, the second part of the sequence is for exiting from dual or quad-
SPI protocol by using the following FFh sequence: DQ0 and DQ3 equal to 1 for 16 clock
cycles within S# LOW; S# becomes HIGH before 17th clock cycle. For DTR protocol, 1
should be driven on both edges of clock for 16 cycles with S# LOW. After this two-part
sequence, the extended-SPI protocol is active.
Initial Delivery Status
The device is delivered as follows:
Memory array erased: all bits are set to 1 (each byte contains FFh)
Status register contains 00h (all status register bits are 0)
Nonvolatile configuration register (NVCR) bits all erased (FFFFh)
128Mb, 3V Multiple I/O Serial Flash Memory
Initial Delivery Status
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 80 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Absolute Ratings and Operating Conditions
Stresses greater than those listed may cause permanent damage to the device. This is a
stress rating only. Exposure to absolute maximum rating for extended periods may ad-
versely affect reliability. Stressing the device beyond the absolute maximum ratings may
cause permanent damage.
Table 38: Absolute Ratings
Symbol Parameter Min Max Units Notes
TSTG Storage temperature –65 150 °C
TLEAD Lead temperature during soldering See note 1 °C
VCC Supply voltage –0.6 4.0 V 2
VIO Input/output voltage with respect to ground –0.6 VCC + 0.6 V 2
VESD Electrostatic discharge voltage
(human body model)
–2000 2000 V 2, 3
Notes: 1. Compliant with JEDEC Standard J-STD-020C (for small-body, Sn-Pb or Pb assembly),
RoHS, and the European directive on Restrictions on Hazardous Substances (RoHS)
2002/95/EU.
2. All specified voltages are with respect to VSS. During infrequent, nonperiodic transitions,
the voltage potential between VSS and the VCC may undershoot to –2.0V for periods less
than 20ns, or overshoot to VCC,max + 2.0V for periods less than 20ns.
3. JEDEC Standard JESD22-A114A (C1 = 100pF, R1 = 1500Ω, R2 = 500Ω).
Table 39: Operating Conditions
Symbol Parameter Min Max Units
VCC Supply voltage 2.7 3.6 V
TAAmbient operating temperature –40 85 °C
TAAmbient operating temperature (automotive) –40 105 °C
Table 40: Input/Output Capacitance
Note 1 applies to entire table
Symbol Description Min Max Units
CIN/OUT Input/output capacitance
(DQ0/DQ1/DQ2/DQ3)
10 pF
CIN Input capacitance (other pins) 6 pF
CIN/S# Input/Chip select 10 pF
Note: 1. Verified in device characterization; not 100% tested. These parameters are not subject
to a production test. They are verified by design and characterization. The capacitance is
measured according to JEP147 ("PROCEDURE FOR MEASURING INPUT CAPACITANCE US-
ING A VECTOR NETWORK ANALYZER (VNA)") with VCC and VSS applied and all other
pins floating (except the pin under test), VBIAS = VCC/2, TA = 25°C, Frequency = 54 MHz.
128Mb, 3V Multiple I/O Serial Flash Memory
Absolute Ratings and Operating Conditions
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 81 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Table 41: AC Timing Input/Output Conditions
Symbol Description Min Max Units Notes
CLLoad capacitance 30 pF 1
Input rise and fall times 1.5 ns
Input pulse voltages 0.2VCC to 0.8VCC V 2
Input timing reference voltages 0.3VCC to 0.7VCC V
Output timing reference voltages VCC/2 V
Notes: 1. Output buffers are configurable by user.
2. For quad/dual operations: 0V to VCC.
Figure 49: AC Timing Input/Output Reference Levels
0.8VCC
0.2VCC
0.7VCC
0.5VCC
0.3VCC
Input levels1I/O timing
reference levels
Note: 1. 0.8VCC = VCC for dual/quad operations; 0.2VCC = 0V for dual/quad operations.
128Mb, 3V Multiple I/O Serial Flash Memory
Absolute Ratings and Operating Conditions
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 82 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
DC Characteristics and Operating Conditions
Table 42: DC Current Characteristics and Operating Conditions
Notes 1–5 apply to entire table
Parameter Symbol Test Conditions Typ Max Unit
Input leakage current ILI ±2 µA
Output leakage current ILO ±2 µA
Standby current (IT range) ICC1 S# = VCC, VIN = VSS or VCC 15 50 µA
Standby current (AT range) ICC1 S# = VCC, VIN = VSS or VCC 30 80 µA
Deep power-down current (IT range) ICC2 S# = VCC, VIN = VSS or VCC 5 30 µA
Deep power-down current (AT range) ICC2 S# = VCC, VIN = VSS or VCC 5 50 µA
Operating current
(fast-read extended I/O)
ICC3 C = 0.1VCC/0.9VCC at 133 MHz, DQ1
= open
16 mA
C = 0.1VCC/0.9VCC at 54 MHz, DQ1
= open
8 mA
Operating current (fast-read dual I/O) C = 0.1VCC/0.9VCC at 133 MHz, DQ1
= open
20 mA
Operating current (fast-read quad I/O) C = 0.1VCC/0.9VCC at 133 MHz, DQ1
= open
22 mA
C = 0.1VCC / 0.9VCC at 80 MHz DTR,
DQ=open
28 mA
C = 0.1VCC / 0.9VCC at 90 MHz DTR,
DQ=open
31 mA
Operating current
(PROGRAM operations)
ICC4 S# = VCC 35 mA
Operating current
(WRITE operations)
ICC5 S# = VCC 35 mA
Operating current (erase) ICC6 S# = VCC 35 mA
Notes: 1. All currents are RMS unless noted. Typical values at typical VCC (3.0/1.8V); VIO = 0V/VCC;
TC = +25°C.
2. Standby current is the average current measured over any time interval 5µs after S de-
assertion (and any internal operations are complete).
3. Deep power-down current is the average current measured 5ms over any 5ms time in-
terval, 100µs after the ENTER DEEP POWER-DOWN operation (and any internal opera-
tions are complete).
4. All read currents are the average current measured over any 1KB continuous read. No
load, checker-board pattern.
5. All program currents are the average current measured over any 256-byte typical data
program.
Table 43: DC Voltage Characteristics and Operating Conditions
Note 1 applies to entire table
Parameter Symbol Conditions Min Max Unit
Input low voltage VIL –0.5 0.3VCC V
128Mb, 3V Multiple I/O Serial Flash Memory
DC Characteristics and Operating Conditions
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 83 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Table 43: DC Voltage Characteristics and Operating Conditions (Continued)
Note 1 applies to entire table
Parameter Symbol Conditions Min Max Unit
Input high voltage VIH 0.7VCC VCC + 0.4 V
Output low voltage VOL IOL = 1.6mA 0.4 V
Output high voltage VOH IOH = –100µA VCC - 0.2 V
Note: 1. VIL can undershoot to –1.0V for periods <2ns and VIH may overshoot to VCC,max + 1.0V
for periods less than 2ns.
128Mb, 3V Multiple I/O Serial Flash Memory
DC Characteristics and Operating Conditions
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 84 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
AC Characteristics and Operating Conditions
Table 44: AC Characteristics and Operating Conditions
Parameter Symbol
Data
Transfer
Rate Min Typ Max Unit Notes
Clock frequency for all commands other
than READ (Extended-SPI, DIO-SPI, and
QIO-SPI protocol)
fC STR DC 133 MHz
DTR DC 90
Clock frequency for READ command (03h) fR STR DC 54 MHz
DTR DC 27
Clock HIGH time tCH STR 3.375 ns 2
DTR 5.0
Clock LOW time tCL STR 3.375 ns 2
DTR 5.0
Clock rise time (peak-to-peak) tCLCH STR/DTR 0.1 V/ns 3, 4
Clock fall time (peak-to-peak) tCHCL STR/DTR 0.1 V/ns 3, 4
S# active setup time (relative to clock) tSLCH STR/DTR 3.375 ns
S# not active hold time (relative to clock) tCHSL STR/DTR 3.375 ns
Data in setup time tDVCH STR 1.75 ns
DTR 1.5 ns
tDVCL DTR only 1.5 ns
Data in hold time tCHDX STR/DTR 2.3 ns
tCLDX DTR only 2.3 ns
S# active hold time (relative to clock) tCHSH STR 3.375 ns
DTR 5.0
S# active hold time (relative to clock LOW)
Only for writes in DTR
tCLSH DTR only 3.375 ns
S# not active setup time (relative to clock) tSHCH STR 3.375 ns
DTR 5.0 ns
S# deselect time after a READ command tSHSL1 STR/DTR 20 ns
S# deselect time after a nonREAD com-
mand
tSHSL2 STR/DTR 50 ns 5
Output disable time tSHQZ STR/DTR 7 ns 3
Clock LOW to output valid under 30pF tCLQV STR/DTR 6 ns
Clock LOW to output valid under 10pF STR/DTR 5 ns
Clock HIGH to output valid under 30pF tCHQV DTR only 6 ns
Clock HIGH to output valid under 10pF DTR only 5 ns
Output hold time tCLQX STR/DTR 1.5 ns
Output hold time tCHQX DTR only 1.5 ns
HOLD setup time (relative to clock) tHLCH STR/DTR 3.375 ns
HOLD hold time (relative to clock) tCHHH STR/DTR 3.375 ns
128Mb, 3V Multiple I/O Serial Flash Memory
AC Characteristics and Operating Conditions
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 85 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Table 44: AC Characteristics and Operating Conditions (Continued)
Parameter Symbol
Data
Transfer
Rate Min Typ Max Unit Notes
HOLD setup time (relative to clock) tHHCH STR/DTR 3.375 ns
HOLD hold time (relative to clock) tCHHL STR/DTR 3.375 ns
HOLD to output Low-Z tHHQX STR/DTR 8 ns 3
HOLD to output High-Z tHLQZ STR/DTR 8 ns 3
CRC check time: main block tCRC STR/DTR 1.3 ms
CRC check time: full chip (128Mb) tCRC STR/DTR 0.5 s
Write protect setup time tWHSL STR/DTR 20 ns 6
Write protect hold time tSHWL STR/DTR 100 ns 6
S# HIGH to deep power-down tDP STR/DTR 3 µs
S# HIGH to standby mode (DPD exit time) tRDP STR/DTR 30 µs
WRITE STATUS REGISTER cycle time tW STR/DTR 1.3 8 ms
WRITE NONVOLATILE CONFIGURATION
REGISTER cycle time
tWNVCR STR/DTR 0.2 1 s
Nonvolatile sector lock time tPPBP STR/DTR 0.1 2.8 ms
Program ASP register tASPP STR/DTR 0.1 0.5 ms
Program password tPASSP STR/DTR 0.2 0.8 ms
Erase nonvolatile sector lock array tPPBE STR/DTR 0.2 1 s
Page program time (256 bytes) tPP STR/DTR 120 1800 µs 7
Page program time (n bytes) 18 + 2.5 x
int(n/6)
1800 µs 8
PROGRAM OTP cycle time (64 bytes) tPOTP STR/DTR 0.12 0.8 ms
Sector erase time tSE STR/DTR 0.15 1 s
4KB subsector erase time tSSE STR/DTR 0.05 0.4 s
32KB subsector erase time tSSE STR/DTR 0.1 1 s
128Mb bulk erase time tBE STR/DTR 38 114 s
Notes: 1. Typical values given for TA = 25 °C.
2. tCH + tCL must add up to 1/fC.
3. Value guaranteed by characterization; not 100% tested.
4. Expressed as a slew-rate.
5. nonREAD commands are WRITE, PROGRAM, and ERASE.
6. Only applicable as a constraint for a WRITE STATUS REGISTER command when STATUS
REGISTER WRITE is set to 1.
7. Typical value is applied for pattern: 50% "0" and 50% "1."
8. int(n) correspond to the integer part of n. For example, int (12/8) = 1, int (32/8) = 4,
int(15.3) = 15.
128Mb, 3V Multiple I/O Serial Flash Memory
AC Characteristics and Operating Conditions
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 86 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
AC Reset Specifications
Table 45: AC RESET Conditions
Note 1 applies to entire table
Parameter Symbol Conditions Min Typ Max Unit
Reset pulse
width
tRLRH2 50 ns
Reset recovery
time
tRHSL Device deselected (S# HIGH) and is in XIP mode 40 ns
Device deselected (S# HIGH) and is in standby mode 40 ns
Commands are being decoded, any READ operations are
in progress or any WRITE operation to volatile registers
are in progress
40 ns
Any device array PROGRAM/ERASE/SUSPEND/RESUME,
PROGRAM OTP, NONVOLATILE SECTOR LOCK, and ERASE
NONVOLATILE SECTOR LOCK ARRAY operations are in
progress
30 µs
While a WRITE STATUS REGISTER operation is in progress tW ms
While a WRITE NONVOLATILE CONFIGURATION REGIS-
TER operation is in progress
tWNVCR ms
On completion or suspension of a SUBSECTOR ERASE op-
eration
tSSE s
Device in deep power-down mode tRDP ms
While ADVANCED SECTOR PROTECTION PROGRAM oper-
ation is in progress
tASPP ms
While PASSWORD PROTECTION PROGRAM operation is
in progress
tPASSP ms
Software reset
recovery time
tSHSL3 Device deselected (S# HIGH) and is in standby mode 40 ns
Any Flash array PROGRAM/ERASE/SUSPEND/RESUME,
PROGRAM OTP, NONVOLATILE SECTOR LOCK, and ERASE
NONVOLATILE SECTOR LOCK ARRAY operations are in
progress
30 µs
While WRITE STATUS REGISTER operation is in progress tW ms
While a WRITE NONVOLATILE CONFIGURATION REGIS-
TER operation is in progress
tWNVCR ms
On completion or suspension of a SUBSECTOR ERASE op-
eration
tSSE s
Device in deep power-down mode tRDP ms
While ADVANCED SECTOR PROTECTION PROGRAM oper-
ation is in progress
tASPP ms
While PASSWORD PROTECTION PROGRAM operation is
in progress
tPASSP ms
128Mb, 3V Multiple I/O Serial Flash Memory
AC Reset Specifications
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 87 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Table 45: AC RESET Conditions (Continued)
Note 1 applies to entire table
Parameter Symbol Conditions Min Typ Max Unit
Chip select
high to reset
high
tSHRH Chip must be deselected before reset is de-asserted 10 ns
Notes: 1. Values are guaranteed by characterization; not 100% tested.
2. The device reset is possible but not guaranteed if tRLRH < 50ns.
Figure 50: Reset AC Timing During PROGRAM and ERASE Cycle
tSHRH
tRLRH
tRHSL
S#
RESET#
Don’t Care
Figure 51: Reset Enable and Reset Memory Timing
C
S#
DQ0
01234567 01234567
Reset enable Reset memory
Figure 52: Serial Input Timing STR
tSLCH
tCHSL
tDVCH tCHDX tCLCH
tCHCL
tCHSH tSHCH
tSHSL
S#
C
DQ0
DQ1 High-Z High-Z
MSB in LSB in
Don’t Care
128Mb, 3V Multiple I/O Serial Flash Memory
AC Reset Specifications
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 88 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Figure 53: Serial Input Timing DTR
High-Z High-Z
tSLCH
tCHSL
tDVCH
tCHDX
tCLCH
tCHCL
tCLSH
tSHCH
tSHSL
S#
C
DQ0
DQ1
MSB LSB
tDVCL
tCLDX
Figure 54: Write Protect Setup and Hold During WRITE STATUS REGISTER Operation (SRWD = 1)
Don’t Care
High-Z High-Z
W#
S#
C
DQ0
DQ1
tWHSL tSHWL
Figure 55: Hold Timing
tHLCH
tCHHL tHHCH
tHLQZ
tCHHH
tHHQX
S#
C
DQ0
DQ1
HOLD#
Don’t Care
128Mb, 3V Multiple I/O Serial Flash Memory
AC Reset Specifications
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 89 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Figure 56: Output Timing for STR
tCL tCH
S#
C
DQ1 LSB out
tCLQX tCLQX tSHQZ
tCLQV tCLQV
Figure 57: Output Timing for DTR
tCL tCH
S#
C
DQ1 MSB LSB
tCLQX tSHQZ
tCLQV tCHQV
tCHQX
128Mb, 3V Multiple I/O Serial Flash Memory
AC Reset Specifications
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 90 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Program/Erase Specifications
Table 46: Program/Erase Specifications
Parameter Condition Typ Max Units Notes
Erase to suspend Sector erase or erase resume to erase suspend 150 µs 1
Program to suspend Program resume to program suspend 5 µs 1
Subsector erase to sus-
pend
Subsector erase or subsector erase resume to erase sus-
pend
50 µs 1
Suspend latency Program 7 25 µs 2
Suspend latency Subsector erase 15 30 µs 2
Suspend latency Erase 15 30 µs 3
Notes: 1. Timing is not internally controlled.
2. Any READ command accepted.
3. Any command except the following are accepted: SECTOR, SUBSECTOR, or BULK ERASE;
WRITE STATUS REGISTER; WRITE NONVOLATILE CONFIGURATION REGISTER; and PRO-
GRAM OTP.
128Mb, 3V Multiple I/O Serial Flash Memory
Program/Erase Specifications
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 91 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Revision History
Rev. K – 04/19
Added reference to TN-25-38 in the power-up and power-down chapter
Rev. J – 05/18
Added Important Notes and Warnings section for further clarification aligning to in-
dustry standards
Added DEEP POWER-DOWN Operations
Added Active Power, Standby Power, and Deep Power-Down modes
Adjusted Nonvolatile Configuration Register table
Added Serial Input Timing DTR figure
Rev. I - 09/16
Typo correction in root Part Number in cover page
Updated Part Number Ordering Information
Rev. H - 07/16
Changed W# description
Updated MAX DTR frequency to 90 MHz
Changed Status Register table
Changed Nonvolatile and Volatile Configuration Register table
Added Initial delivery status
Rev. G – 06/16
Added general purpose read register notes to Command Definitions table
Rev. F – 12/15
Added note for READ REGISTER Operations table and WRITE REGISTER Operations
table
Added code 60h for BULK ERASE Command in Command Set table in Command Def-
initions section
Rev. E – 10/15
Typo correction in Output Timing figure in AC Reset Specifications section
Rev. D – 9/15
Revised wrap table
Revised supported clock frequencies DTR
Change bit 3 setting of Enhanced Volatile Configuration Register from 0 to 1
Revised AC table
128Mb, 3V Multiple I/O Serial Flash Memory
Revision History
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 92 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
Rev. C – 7/15
Added reference to serial flash discovery parameter data, which is now contained in a
technical note
Change DTR frequency at 80Mhz
Revised cover page part number to: MT25QL128ABA.
Revised signal assignments
Revised supported clock frequencies with a note to reference TN-25-07: Tuning Data
Pattern for MT25Q and MT25T Devices
Revised serial flash discovery parameter with a note to reference TN-25-06: SFDP for
MT25Q Family
Added ambient temperature for automotive
Added 80MHz information for ICC3 in DC specifications
Revised minimum clock rise and fall times in AC specifications
Increase ICC4 ,ICC5 and ICC6 at 35mA
Increase suspend latency time for erase at 30us
Change tCLQX and tCHQX at 1.5ns
Rev. B – 7/14
Added the TBGA 14, DF8N W7, and W9
Rev. A – 01/14
Initial release
8000 S. Federal Way, P.O. Box 6, Boise, ID 83707-0006, Tel: 208-368-4000
www.micron.com/products/support Sales inquiries: 800-932-4992
Micron and the Micron logo are trademarks of Micron Technology, Inc.
All other trademarks are the property of their respective owners.
This data sheet contains minimum and maximum limits specified over the power supply and temperature range set forth herein.
Although considered final, these specifications are subject to change, as further product development and data characterization some-
times occur.
128Mb, 3V Multiple I/O Serial Flash Memory
Revision History
CCMTD-1725822587-10223
mt25q_qlhs_L_128_ABA_xxT.pdf - Rev. K 04/19 EN 93 Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.